TY  - BOOK
AU  - Singh, A.K.
AU  - Doria, R.S.
TI  - Man development and environment
SN  - 8170242886
U1  - 304.2 
PY  - 1990///
CY  - New Delhi
PB  - Ashish
KW  - Social Behavior
KW  - Human Ecology
ER  -