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	1.	No cover image available Odonata nymphs by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 75-127 : ill., ill., tab. Availability: No items available.
	2.	No cover image available Ephemeroptera nymphs by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 129-199 : ill., ill. h. t., tab. Availability: No items available.
	3.	No cover image available Plecoptera nymphs (Perlidae; Acroneuriinae) by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 201-209 : ill. h. t. Availability: No items available.
	4.	No cover image available Aquatic hemiptera-heteroptera by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 211-215 : tab. Availability: No items available.
	5.	No cover image available Megaloptera (corydalidae; neurominae) by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 217-223 : ill. h. t., tab. Availability: No items available.
	6.	No cover image available Aquatic lepidoptera (Pyralidae; nymphulinae) by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 225-233 : ill. h. t., tab. Availability: No items available.
	7.	No cover image available The trichoptera larvae and pupae by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 235-303 : ill., tab. Availability: No items available.
	8.	No cover image available Dipeta with some observations on the salivary glands of the Tentipedidae by Roback, Selwyn Series: Monographs of the academy of natural sciences of Philadelphia Material type: Article; Format: print ; Literary form: Not fiction Language: Eng In: The catherwood foundation peruvian-amazon expedition : limnological and systematic studies p. 305-375 : ill. Availability: No items available.
	9.	No cover image available The catherwood foundation peruvian-amazon expedition : limnological and systematic studies by Patrick, Ruth Aldrich, Frederick [collab] Cairns, John [collab] Drouet, Francis [collab] Hohn, Matthew [collab] Roback, Selwyn [collab] Skuja, H [collab] Spangler, Paul [collab] Swabey, Yvonne [collab] Whitford, L.A [collab] Series: Monographs of the academy of natural sciences of Philadelphia Material type: Text; Format: print ; Literary form: Not fiction Language: Eng Publication details: Philadelphia : Academy of natural sciences of Philadelphia, 1966 Availability: Items available for loan: Biblioteca IFEA (1)Call number: Am.Sc.Nat186. Place hold

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