@book{13424,
	author = {Velásquez Velásquez, Fernando},
	title = {Drogas : },
	publisher = {Temis,},
	year = {1989.},
	address = {Bogotá :},
	note = {Primer Seminario Hispano Colombiano de Derecho Penal, Barcelona, noviembre 27-30 de 1987}
}