@book{16299,
	author = {Rojas Soriano, Raúl and Universidad Nacional Autónoma de México},
	title = {Guía para realizar investigaciones sociales},
	publisher = {Universidad Nacional Autónoma de México,},
	year = {1972},
	series = {Textos universitarios},
	address = {México : },
	edition = {7a. ed}
}