000
00266nam a2200109Ia 4500
008
220201s1963 xx 000 0 eng d
100
_a
Gorak Prasad
245
0
_a
key to integral calculas
260
_b
Allahabad: Pottishala Ltd
_c
1963
300
_a
204
942
_2
ddc
999
_c
72014
_d
72014