@book{37965,
	author = {López-Rey y Arrojo, Manuel. and Toro Calder, Jaime, and University of Puerto Rico Rio Piedras campus},
	title = {Extensión, características y tendencias de la criminalidad en Puerto Rico, 1964-70},
	publisher = {Upred Editorial, Universidad de Puerto Rico},
	year = {1975.},
	address = {Río Piedras},
	edition = {2d. ed.},
	note = {At head of title: Centro de Investigaciones Sociales.}
}