TY  - BOOK
AU  - Zaheed, Imtiyaz Hussain,
AU  - Naser, Rafiuddin,
TI  - A Textbook on environmental biology
SN  - 9789350562314 (Hb.)
AV  - QH310 .Z33 2013
PY  - 2013///
CY  - New Delhi
PB  - Discovery Publishing House, 
KW  - Environmental biology
N1  - Includes index
ER  -