TY  - GEN
AU  - S.A. Nasim.
TI  - Elements of ecology
SN  - 9789381302347 (hbk.)
AV  - Microfiche 2013/60008 (Q) 
U1  - 577 
PY  - 2012///
CY  - New Delhi
PB  - Axis Books
KW  - Environmental protection
N1  - Includes index
ER  -