TY  - BOOK
AU  - Boque, Donald J.
AU  - Nelson, J.
TI  - Fertility components and contraceptive history techniques for measuring contraceptive use effectiveness: D.J. Boque and J. Nelson
U1  - 613.888 
PY  - 1971///
CY  - Chicago
PB  - University Press
KW  - Family planning
KW  - Birth control
ER  -