TY  - BOOK
AU  - Laughlin Charles D
AU  -  Brady Ivan A
TI  - Extinction and survival in human populations
U1  - Y7:(G:66), L8 
PY  - 1978///
CY  - New York    
PB  -  Columbia University Press      
KW  -  Human evolution
KW  - Anthropology
N1  - Bibliography 291-316p
ER  -