@book{4144,
	author = {SAPAG CHAIN, NASSIR. and SAPAG CHAIN, REINALDO.},
	title = {FUNDAMENTOS DE PREPARACION Y EVALUACION DE  PROYECTOS/ },
	publisher = {MCGRAW-HILL},
	year = {1985},
	address = {BOGOTA ; MEXICO: },
	note = {INCLUYE BIBLIOGRAFIAS E INDICE.}
}