@book{14732,
	author = {Luhman, Niklas and Erker, Brunhilde,  and Pontificia Universidad Javeriana.},
	title = {Sistemas sociales :},
	publisher = {Barcelona : Anthropos ; Santafé de Bogotá : CEJA, Centro Editorial Javeriano,},
	year = {1998.},
	series = {Autores, textos y temas. Ciencias sociales},
	address = {Bogotá :},
	edition = {2a ed.},
	note = {Incluye índice}
}