TY  - SER
AU  - Brewis, Alexandra.
TI  - Demographic Evidence that Human Ovulation Is Undetectable (At Least in Pair Bonds)
T2  - Current Anthropolgy ; 
PY  - 2005///
CY  - Chicago-US : 
PB  - Department of Human Sciences, 
N1  - Artículo dentro de. Reports
ER  -