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	1.	No cover image available An initial consideration of obsidian procurement and exchange in prehispanic Ecuador by Burger, Richard Asaro, Frank Michel, Helen Stross, Fred Salazar, Ernesto Material type: Article; Format: print Language: Eng In: Latin american antiquity 5(3), 1994, p. 228-255: , : ill., carte, tab., rés.(Angl., Esp) Availability: No items available.
	2.	No cover image available Ecuadorian obsidian sources used for artifact production and methods for provenience assignments by Asaro, Frank Salazar, Ernesto Michel, Helen Burger, Richard Stross, Fred Material type: Article; Format: print Language: Eng In: Latin american antiquity 5(3), 1994, p. 257-277: , : carte, graph., tab., append., rés.(Esp., Angl) Availability: No items available.
	3.	Le caractérisation céramique en archéologie : pétrographie, fluorescence de rayons X et microscopie électronique à balayage by Druc, Isabelle Series: Paléo-Québec, 29 Material type: Article; Format: print ; Literary form: Not fiction Language: Fre In: L'archéologie sous la loupe : contributions à l'archéométrie p. 53-65 : ill., graph., tab., rés.(Fr., Angl) Availability: No items available.

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