000
00282nam a2200121Ia 4500
008
220201s1983 xx 000 0 eng d
082
_a
540 SIN
100
_a
Narendra Singh
245
0
_a
Polytechnic applied chemistry
260
_b
Katson Pub
_c
1983
300
_a
288
942
_2
ddc
999
_c
82221
_d
82221