000
00298nam a2200121 a 4500
082
_a
574.5
_b
VER
100
_a
Verma, P.S,
245
_a
Principles of Ecology: Environmental Biology
260
_a
New Delhi:
_b
S.Chand & Com,
300
_a
viii, 591 pages.
500
_a
Included Index
942
_c
REF
999
_c
12616
_d
12616