00302nam a2200121Ia 4500008004100000100002000041245003100061250001200092260004400104300000800148942000700156999001700163190216s9999||||xx |||||||||||||| ||und||  aRichardson. E.G 0aSound A Physical Text Book  a5th Ed.  bThe English Language Book Societyc1963  a352  cBK  c32755d32755