000
00271nam a2200097Ia 4500
008
230930s9999||||xx |||||||||||||| ||und||
100
_a
YADAV P.R. & MISHRA R. SHUBHRATA
245
0
_a
ENVIRONMENTAL ECOLOGY
260
_a
NEW DELHI, INDIA
260
_b
DISCOVERY PUBLISHING HOUSE
999
_c
12450
_d
12450