TY  - BOOK
AU  - Brown Harrison , and others Ed.
TI  - Population :  Perspective 1973 .   
T2  - Collect population programme and American  universities field staff
U1  - Y:5.1.N7, L3 
PY  - 1973///
CY  - San Francisco  
PB  - Fransisco Freeman Cooper and Company      
ER  -