@inbook {,
	title = {Ceramic Sequence from Chijra, Colca Valley, Peru},
	booktitle = {The cultural ecology, archaeology, and history of terracing and terrace abandonment in the Colca Valley of southern Peru. },
	volume = {2},
	year = {1986},
	pages = {204-233},
	publisher = {University of Wisconsin},
	organization = {University of Wisconsin},
	address = {Madison, WI},
	author = {Malpass, Michael and Vera Cruz, Pablo de la},
	editor = {Denevan, William M.}
}