TY  - BOOK
AU  - Hamm Bernd Ed.
TI  - Progress in social ecology
SN  - 8170993210 (hbd)
U1  - Y7:(G:5), N2-;1 
PY  - 1992///
CY  - New Delhi    
PB  -  Mittal Publications       
KW  -  Social ecology
KW  - Sociology
ER  -