TY  - GEN
AU  - Asthana, D. K. 
AU  - Asthana, Meera 
TI  - Textbook on environmental studies: for undergraduates students 
SN  - 9788121927642
U1  - 333.7 AST-T 
PY  - 2020///
CY  - New Delhi
PB  - S. Chand
KW  - Environmental Science
KW  - Land Economics
KW  - Natural resources and energy
N2  - Includes bibliographic references and indexes
ER  -