000
00260nam a2200109Ia 4500
008
220201s1980 xx 000 0 eng d
100
_a
Gurucharan Singh
245
0
_a
Prarambhik sichai engineery
260
_b
Standard Pub
_c
1980
300
_a
522
942
_2
ddc
999
_c
82066
_d
82066