People, jobs, and economic development a case history of Puerto Rico, supplemented by recent Mexican experiences. - Jaffe, Abram J. 1912- (Glencoe, Ill. Free Press, 1959)
"A report of the Bureau of Applied Social research of Columbia University."
Keywords: Columbia University. Bureau of Applied Social Research; Labor and laboring classes -- Puerto Rico; Labor and laboring classes -- Mexico; Economic development -- Case studies; Puerto Rico -- Economic condition -- 1918-.; Mexico -- Economic condition -- 1918.