TY  - SER
AU  - Sainz de la Maza Kaufmann, Marta.
TI  - Contraception in Three Chibcha Communities and the Concept of Natural Fertility
T2  - Current Anthropolgy ; 
PY  - 1997///
CY  - Chicago-US : 
PB  - Department of Human Sciences, 
N1  - Artículo dentro de: Reports
ER  -