@book{2910,
	author = {Vinogradov, Sophia and Yalom, Irvin D.},
	title = {Guía breve de psicoterapia de grupo =},
	publisher = {Paidós,},
	year = {1996},
	address = {Barcelona:},
	edition = {1a.ed},
	note = {Fotocopia}
}