000 00380nam a2200169Ia 4500
008 210210b1960 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a539/16
100 _aCLARK (John A) and others
245 _aHearing and seeing
260 _aLondon
_bLongman
_c1960
300 _a80
650 _aseeing
650 _aHearing
690 _aPhysics
906 _a009032
999 _c126745
_d126745