Perloff, Harvey S. Puerto Rico's economic future : a study in planned development / by Harvey S. Perloff. - Chicago : University of Chicago Press, 1950. - xviii, 435 p. : ill., maps ; 25 cm. Includes bibliography: p. 411-416. Subjects--Geographic Terms: Puerto Rico -- Economic policy. Dewey Class. No.: AF MP 338.97295 PER