TY  - BOOK
TI  - Changing patterns of conception and fertility: proceedings of the 16th Annual Symposium of the Eugenics Society, London, 1979 
SN  - 0125896409
AV  - HB901 
PY  - 1981///
CY  - London, New York
PB  - Academic Press
KW  - Fertility, Human
KW  - Contraception
N1  - GB***
ER  -