@book{193718,
	author = {Pick de Weiss, Susan. and López Velasco de Faubert, Ana Luisa.},
	title = {Como investigar en ciencias sociales},
	publisher = {Trillas},
	year = {1994.},
	address = {México},
	edition = {5. ed.},
	note = {Includes bibliographical references (p. 155-156) and index.}
}