000 00339nam a22001217a 4500
999 _c2054
_d2054
005 20200908135933.0
008 200908b ||||| |||| 00| 0 eng d
020 _a15325
040 _cCML
245 _aSound and Ultrasonic.
_cIrving, R.
260 _aLondon
_bDennis Dobson
_c1959
942 _2ddc
_cBK
_e2st Edition
_h534
_mIRV