@book{173555,
	author = {Haiman, Franklyn S. and Blanco, Félix},
	title = {La dirección de grupos : teoría y práctica  /},
	publisher = { Limusa,},
	year = {1972},
	address = {México  :},
	edition = {2a ed.},
	note = {Título original: Group leadership and democratic action}
}