@book{135420,
	author = {Berle, Beatrice Bishop},
	title = {80 Puerto Rican families in New York City},
	publisher = {Arno Press},
	year = {1975.},
	series = {[The Puerto Rican experience]},
	address = {New York},
	note = {Reprint of the 1958 ed. published by Columbia University Press, New York.}
}