@book{34093,
	author = {Pick de Weiss, Susan. and López Velasco, Ana Luisa.},
	title = {Cómo investigar en ciencias sociales /},
	publisher = {Editorial Trillas,},
	year = {1979.},
	address = {México :},
	edition = {1. ed.},
	note = {Includes index.}
}