@book {,
	title = {Mountain, Field, and Family: The economy and human ecology of an Andean valley},
	year = {1977},
	note = {Stephen B. Brush.ill. ; 24 cm.Includes index.},
	pages = {xiv, 199 , [5] leaves of plates},
	publisher = {University of Pennsylvania Press},
	organization = {University of Pennsylvania Press},
	address = {Philadelphia},
	keywords = {Indians of South America Peru Economic conditions, Peasantry Peru, Peru Economic conditions 1968- .},
	isbn = {0812277287},
	author = {Brush, Stephen B.}
}