@book{127014,
	author = {Safa, Helen Icken},
	title = {The urban poor of Puerto Rico},
	publisher = {Holt, Rinehart, and Winston},
	year = {1974.},
	series = {Case studies in cultural anthropology},
	address = {New York},
	note = {Bases in part on the author's thesis, Columbia University.}
}