000 00335nam a2200145Ia 4500
008 160910s9999 xx 000 0 und d
040 _cSGVU Library
041 _cEnglish.
100 _aYunzhi, G.
245 _aSound.
_cBy G. Yunzhi
260 _bC & Tech, China.
520 _aEngineering
650 _aMechanical
942 _cBOOKS
999 _c3181
_d3181