000 00279nam a2200121Ia 4500
100 _aAllgood
942 _cBK
245 _aDemonstration techniques, 2nd ed.
260 _aNew Delhi
_bPrentice - Hall
_c1965
082 _a375.64
_bAll
300 _axiv,(2),142
546 _aEnglish
999 _c341568
_d341568
041 _aeng