TY  - BOOK
AU  - Bogue,Donald J.
AU  - Heikanen,Veronica Stolte
TI  - How to improve written communication for birth control
U1  - 363.96/B634h 
PY  - 1963///
CY  - Chicago, Estados Unidos 
PB  - Community and Family Study Center, University of Chicago.
KW  - CONTROL DE LA NATALIDAD
KW  - PLANIFICACION FAMILIAR
ER  -