TY  - BOOK
A1  - England, P.
A1  - McClintock, E.
A1  - Shafer, E.
T1  - Birth control use and early, unintended births: Evidence for a class gradient
Y1  - 2011
DO  - 10.1515/9780804779081-004
CY  - Stanford, CA
PB  - Stanford University Press

ER  -