TY  - BOOK
AU  - Hardy,Ian C.W.
TI  - Sex Ratios: Concepts and Research Methods
SN  - 0521665787
U1  - 576.8SEX2002 
PY  - 2002///
CY  - USA
PB  - Cambridge University Press
KW  - Biology
N1  - Includes; references and index
ER  -