TY  - BOOK
AU  - Engle,Earl T.
TI  - The Problem of Fertility: Proceedings of the conference on fertility held under the auspices of the National Committee on Maternal Health 
U1  - 612.663 23
PY  - 1946///
CY  - Princeton
PB  - Princeton University Press
KW  - Fertility
KW  - Ovulation
N1  - Includes bibliographical references & Index
ER  -