@inbook {,
	title = {Obsidian Sources on or Near the Slopes of Pico de Orizaba Volcano},
	booktitle = {A world of obsidian: The mining and trade of a volcanic glass in ancient Mexico [Un mundo de obsidiana: miner{\'\i}a y comercio de un vidrio volc{\'a}nico en el M{\'e}xico antiguo]},
	year = {2002},
	note = {Robert H. Cobean.World of obsidianill., maps ; 28 cm.},
	pages = {131-182},
	publisher = {Instituto Nacional de Anhropologia e HistoriaUniversity of Pittsburgh},
	organization = {Instituto Nacional de Anhropologia e HistoriaUniversity of Pittsburgh},
	address = {M{\'e}xico, D.F.Pittsburgh},
	keywords = {Indians of Mexico Commerce., Indians of Mexico Implements., Indians of Mexico Industries., Mexico Antiquities., Obsidian implements Mexico., Obsidian Mexico Analysis., Obsidian mines and mining Mexico History.},
	isbn = {970182508X},
	author = {Cobean, Robert H. and Stocker, Terrance L.},
	editor = {Cobean, Robert H.}
}