TY  - BOOK
AU  - Westoff,Leslie Aldridge
AU  - Westoff,Charles F.
TI  - From now to zero: fertility, contraception and abortion in America 
U1  - 301.320973 
PY  - 1971///
CY  - Boston
PB  - Little, Brown and Company
KW  - Control natal
KW  - Estados Unidos
KW  - Aborto
KW  - Población
N1  - Bibliografías: 357-358
ER  -