@book{185736,
	author = {Gelles, Richard James, and Levine, Ann.},
	title = {Sociología},
	publisher = {McGraw-Hill},
	year = {2000.},
	address = {México, D.F.},
	edition = {6ta ed.},
	note = {Translation of: Sociology: an introduction (6th ed.), 1999.}
}