000 00263nam a2200109Ia 4500
008 211209s1980 xx 000 0 und d
041 _aeng
100 _aSHARMA,M C.
245 _aPRACTICAL SCR AND TRIAL PROJECTS
260 _aNEWDELHI
_bB P B
_c1980
300 _a48
999 _c99217
_d99217