000
00272nam a2200109Ia 4500
005
20260205052530.0
008
260111s9999||||xx |||||||||||||| ||und||
100
_a
Sud, Dhiraj
245
0
_a
Polytechnic applied chemistry
260
_a
Ludhiana
_b
Kataria
_c
1998
942
_c
BK
999
_c
116657
_d
116657