000
00266nam a2200109Ia 4500
008
220201s1993 xx 000 0 eng d
100
_a
TRIVEDI R N
245
0
_a
TEXT BOOK OF ENVIRONMENTAL SCIENCE
260
_a
DELHI
_b
ANMOL PUB
_c
1993
300
_a
410
942
_2
ddc
999
_c
91658
_d
91658