TY  - BOOK
AU  - Bull James J
TI  - Evolution of sex determining mechanism
T2  - Evolution series; 1
U1  - Y7:(G:6), M3-;2 
PY  - 1983///
CY  - California
PB  - Benjamin/Cummings         
KW  -  Human genetics
KW  - Anthropology
ER  -