000 00257nam a2200109Ia 4500
008 220201s1995 xx 000 0 eng d
100 _aNAGPAL G R
245 0 _aMECHANICAL OBJECTIVE TYPE
260 _aDELHI
_bKHANNA PUB
_c1995
300 _a528
942 _2ddc
999 _c92969
_d92969