000 00272nam a2200109Ia 4500
008 170101s1965 xx 000 0 und d
082 _aHMSc 640.7 A41D
100 _aALLGOOD, Mary Brown
245 0 _aDemonstration techniques
260 _bNew Delhi
_c1965
942 _2ddc
_cB
999 _c39909
_d39909