TY  - GEN
AU  - Singh, Gurcharan
TI  - Pollution to purity of environment
SN  - 8176292362
U1  - 158.1 
PY  - 2000///
CY  - New Delhi
PB  - Deep
KW  - APPLIED PSYCHOLOGY
KW  - PERSONAL IMPROVEMENT
KW  - PERSONAL RESPONSIBILITIES
ER  -