TY  - BOOK
AU  - Vogt,William
TI  - People, challenge to survival / 
U1  - 301.32 VOG 
PY  - 1960///
CY  - New York : 
PB  - W. Sloane Associates , 
KW  - Birth control
KW  - Population
N1  -  Includes bibliographical references
ER  -