000
00329nam a2200145Ia 4500
008
240117s9999||||xx |||||||||||||| ||und||
082
_a
P S/P
082
_b
574.5
100
_a
p s
100
_a
verma
245
0
_a
principles of ecology
260
_a
RAMNAGAR,NEW DELHI
260
_b
s .chand &company ltd
650
_a
BIOLOGY
999
_c
16037
_d
16037