@book{32629,
	author = {Shaughnessy, John J., 1947 -  and Zechmeister, Eugene B.},
	title = {Métodos de investigación en psicología / },
	publisher = {McGraw - Hill, },
	year = {2007.},
	address = {México : },
	edition = {7a. ed.  Editor Noé Islas López.},
	note = {Glosario : p. 540 - 546.}
}