000
00254nam a2200109Ia 4500
008
220201s1977 xx 000 0 eng d
100
_a
Bhattacharya, PK
245
0
_a
Water power engg.
260
_b
Khanna Publisher
_c
1977
300
_a
239
942
_2
ddc
999
_c
81279
_d
81279