References
- Davis , K. 1963 . The Theory of Change and Response in Modern Demographic History . Population Index , 29 November : 345 – 366 .
- Caldwell , J. 1978 . A Theory of Fertility . Population and Development Review , 4 December : 553 – 578 .
- Notestein , F. Economic Problems of Population Change . in Proceedings of the Eighth International Conference of Agricultural Economists .
- et al. The Family and Population Control 1959 Chapel Hill
- R. Easterlin . 1976 . Population Change and Farm Settlement in the Northern United States . Journal of Economic History , 36 ( 1 )
- Davis , K. 1976 . “ The Effect of Outmigration on Regions of Origin ” . In Internal Migration: A Comparative Perspective Edited by: Brown , A. and Neuberger , E. 150 – 151 . New York
- Glass , D.V. 1965 . “ Population Growth and Population Policy ” . In Public Health and Population Change Edited by: Sheps , Mindel and Ridley , Jeanne . Pittsburgh
- Sly , D. 1972 . Migration and the Ecological Complex . A menean Journal of Sociology , : 618 – 618 . October
- Abu-Lughod , J. 1964 . Rural-Urban Differences as a Function of the Demographic Transition . American Journal of Sociology , 69 March : 476 – 490 .
- Miller , A. 1971 . International Variations in the Industrial Distribution of the Labor Force: A Preliminary View Unpublished paper
- Hatt , P. K. 1952 . Backgrounds of Human Fertility in Puerto Rico 455 – 455 . Princeton
- Earnhardt , K. 1977 . Population, Development Planning, and Population Policy in Puerto Rice . Intercom , 4 ( 7 ) : 8 – 9 . (population Reference Bureau, Washington, D.C.)
- Stycos , J. Human Fertility in Latin America , Ithaca, N.Y. : Cornell University Press .
- Maldonado , R. September 1976 . “ Why Puerto Ricans Migrated to the U.S., 1947–1973 ” . In Monthly Labor Review September , 7 – 18 .
- Henry , L. 1961 . Some Data on Natural Fertility . Eugenics Quarterly , 8 ( 2 )
- Osterud , Nancy and Fulton , J. 1976 . Family Limitation and Age at Marriage: Fertility Decline in Sturbridge, Massachusetts . Population Studies , 30 ( 3 ) : 481 – 494 .