TY  - BOOK
AU  - Sharma, Ramadhar
TI  - Parayavaran-vigyan: ek adhayayan
U1  - 363.7 hP7 
PY  - 2007///
CY  - Varanasi
PB  - Chaukhamba Sur Bharti Prakashan
KW  - Environment
KW  - Environment studies
ER  -