TY  - BOOK
AU  - Thatheyus,Joseph, A.
TI  - Text book of environmental studies
SN  - 9788184870947
U1  - 363.7 THA 
PY  - 2011///
CY  - New Delhi
PB  - Narosa Publishing house
KW  - Human ecology. | Environmental sciences. | cologie human
ER  -