TY  - BOOK
AU  - Overbeek Johannes
TI  - Population challenge :  A handbook for nonspecialists
SN  - 0837188962 (HB)
U1  - Y:5g, L6 
PY  - 1976///
CY  - Westport
PB  - Greenwood Press USA     
KW  - SOCIOLOGY
ER  -