000 00390nam a2200157Ia 4500
008 160615s9999 xx 000 0 und d
100 _aBERGMANN(Ludwig)
245 _aUltrasonics and their scientific and technical applications
260 _aLondon
260 _bG Bell & Sons Ltd
260 _c1938
300 _ax p. + 264
942 _cBooks
999 _c8697
_d8697