TY  - JOUR
A1  - Chen, K.H.
A1  - Wishik, S.M.
A1  - Scrimshaw, S.
T1  - Effects of Unstable Sexual Unions on Fertility in Guayaquil, Ecuador
Y1  - 1974
JF  - Social Biology
VL  - 21
IS  - 353-359

ER  -