TY  - BOOK
AU  - Vyas, Shyam Manohar
TI  - Paryavaran vishwakosh
SN  - 81-85488-33-9
U1  - 333.703 21st
PY  - 1994///
CY  - Jaipur
PB  - University Book House
KW  - Environment; Encyclopedias and dictionaries; Environmental education
ER  -