TY  - BOOK
AU  - Sethi,Manmohan Singh
AU  - Sethi,Inderjeet Kaur
TI  - Understanding our environment
U1  - 574.5 19
PY  - 1991///
CY  - New Delhi
PB  - Commonwealth Publishers
KW  - Physical environment
KW  - Spines
N1  - env
N2  - Environment Management
ER  -