TY  - BOOK
AU  - Knight C Gregory
TI  - Ecology and change
U1  - Y31:6.611.N7, L4   906 
PY  - 1974///
CY  - New York    
PB  -  Academic Press       
KW  -  Rural change
KW  -  Social change
KW  -  Social condition
KW  - Tanzanina
ER  -