000
00284nam a2200121Ia 4500
008
220201s1979 xx 000 0 eng d
082
_a
627
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GUP
100
_a
Gupta, B Lal
245
0
_a
Water resources engg hydrology
260
_b
Standard Pub
_c
1979
300
_a
639
942
_2
ddc
999
_c
82062
_d
82062