00821nam a2200205Ia 4500 165888 165888 221329 BIBL 20180914124941.0 990602|1974||||ca |||||||||||||| ||eng|d EVLG spa rda Population change : a case study of Puerto Rico / prepared by Sociological Resources for the Social Studies;Sponsored by the American Sociological Association; supported by the National Science Foundation. Belmont, California : Allyn and Bacon, Inc. : 1974. 54 p. txt rdamedia n rdacarrier nc Population Social Aspects Puerto rico. Local 152616 Social change Puerto Rico. Local 171740 lcc 6 HB 3555 .S6 1974 HB 3555 .S6 1974 0 0 lc 0 HB_3555_000000000000000__S6_1974 0 mbref 308339 12 12 7 2016-05-27 donaciØn 316178 0 HB 3555 .S6 1974 50000001989895 2016-05-27 00:00:00 r:221329 z:NCC:D 9