The family and population control a Puerto Rican experiment in social change - Hill, Reuben 1912-; Stycos, J. Mayone; Back, Kurt W. (New Haven University of Carolina Press, 1965)
A Social Science Research Center Study, College of the Social CSciences, University of Puerto Rico, in cooperation with the Institute for Research in Social Sciences, the University of North Carolina.
Keywords: Birth control -- Puerto Rico; Family -- Puerto Rico