000 00298nam a2200121Ia 4500
008 220201s1972 xx 000 0 eng d
041 _aENG
100 _aGUPTA,D L
245 0 _aENGINEERING PHYSICS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1972
300 _a1020
942 _2ddc
999 _c56741
_d56741