Vocal registers in Singing: Proceedings of a Symposium on Vocal Registers in Singing; 78. meeting of the Acoustical Society of America, San Diego, California, Nov. 7, 1969 and Silver jubilee convention of the National Ass. of Teachers of Singing, Clevelan

Vocal registers in Singing: Proceedings of a Symposium on Vocal Registers in Singing; 78. meeting of the Acoustical Society of America, San Diego, California, Nov. 7, 1969 and Silver jubilee convention of the National Ass. of Teachers of Singing, Clevelan