000 00298 a2200121 4500
080 _a534-8
_bB 649 L
245 1 _aUltrasonics
_bMethods and applications
_cby J. Blitz
260 _aLondon
_bButterworths
_c1971
650 _aUltrasonics
100 1 _aBlitz, J.
_d
300 _a151 p.
901 _a110345
999 _c25970
_d25970