References
- Vojta , M. 1961 . “ Practice of Abortion and Pregnancy Termination in Czechoslovakia ” . In Monographen der Akademie für Staatsmedizin in Hamburg Edited by: Harmsen , H. Vol. 16 , 130 – 145 . in
- Tietze , C. and Dawson , D. A. December 1973 . “ Induced Abortion: A Factbook ” . In Reports on Population and Family Planning December ,
- Central Statistical Office, People's Republic of Poland . 1969 . Rocznik Statystyczny Ochrony Zdrowia, 1945–67 (Statistical Yearbook of Public Health, 1945–67) , 392 – 393 . Warsaw : GUS . 410-411
- Day , L. H. 1973 . Collection by the United Nations of Statistics on Legally Induced Abortions’ . International Population Conference . 1973 , Liège. pp. 315 – 318 . Published by International Union for the Scientific Study of Population . 1974
- Rocznik Demograficzny, 1945–66 2 – 4 . 69
- Berent , J. March 1970 . “ Causes of Fertility Decline in Eastern Europe and the Soviet Union ” . In Population Studies Vol. 24 , March , 35 – 58 .
- Petersen , W. 1969 . Population , 234 – 235 . New York : The MacMillan Company .
- Rocznik Statystyczny Ochrony Zdrowia, 1945–67 4 – 5 . 156-157
- Tauber , N. A. 1973 . “ Relation of Demography to Social Hygiene ” . In Problemy Narodonasseleniya (Population problems) , 101 – 107 . Moscow : Statistika . in; (in English)
- Mazur , D. P. 1969 . Correlates of Divorce in the U.S.S.R.’ . Demography , 6 ( 3 ) August : 279 – 86 .
- Blalock , H. M. Jr. , ed. 1971 . Causal Models in the Social Sciences , Chicago : Aldine-Atherton .
- Bumpass L. L. Presser H. B. The Increasing Acceptance of Sterilization and Abortion Toward the End of Growth et al. Prentice-Hall, Inc. New Jersey 1973 33 46 in
- 1973 . Die Pille ist nicht schuld daran’ . Stern , 20 10 May : 125 – 131 .
- 1973 . Vestnik Statistiki 79 – 79 .
- Ziolkowski , J. A. 1974 . “ Poland ” . In Population Policy in Developed Countries , Edited by: Berelson , B. 445 – 488 . New York : McGraw-Hill Book Co. . in
- Szer , S. 1969 . Rodzinne w Zarysie , 17 – 19 . Warsaw : Panstwowe Wydawnictwo Naukowe . 112-114
- James , W. H. 1970 . The Incidence of Spontaneous Abortion’ . Population Studies , 24 ( 2 ) July : 241 – 245 .
- Glick , P. C. 1973 . Dissolution of Marriage by Divorce and its Demographic Consequences’ . International Population Conference . 1973 , Liège. Vol. 2 , pp. 65 – 79 . International Union for the Scientific Study of Population . 1973