TY  - BOOK
AU  - Joshi P.C.
AU  - Joshi Namita.
TI  - A Text Book of Environmental Science 
SN  - 978-81-313-0457-0
U1  - 372.357 
PY  - 2020///
CY  - New Delhi
PB  - APH Publishing
N1  - A Text Book of Environmental Science,
ER  -