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	1.	No cover image available La Jalca de oro : biodiversidad, medio ambiente y minería en la Sierra de Cajamarca-Perú by Bazán Zurita, Homero Plenge, Heinz [éd] Sánchez Vega, Isidoro Cabanillas Soriano, Manuel Miranda Leiva, Alfonso Material type: Text; Format: print ; Literary form: Not fiction Language: Spa Publication details: Lima : Minera Yanacocha, 1998 Availability: Items available for loan: Biblioteca IFEA (1)Call number: Am.Sc.Nat414. Place hold
	2.	Birds of the clouds by Plenge, Heinz Williams, Rob Valqui, Thomas Perisutti, Arno [coord] Material type: Text; Format: print ; Literary form: Not fiction Language: Spa Language: Eng Publication details: Lima : Foto Natur, 2004 Other title: Aves de las nubes: Alto Mayo y Cordillera de Colán Availability: Items available for loan: Biblioteca IFEA (1)Call number: Am.Sc.Nat449. Place hold

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