@book{201397,
	author = {Coolican, Hugh.},
	title = {Métodos de investigación y estadística en psicología},
	publisher = {Editorial El Manual Moderno},
	year = {2005.},
	address = {México},
	edition = {3<U+00AA> ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0620/2004275112-d.html}
}