Ellis, A. J., & Mendel, A. (1968). Studies in the History of Musical Pitch: Monographs / by Alexander J. Ellis & Arthur Mendel. Frits Knuf.

Ellis, Alexander J., and Arthur Mendel. Studies in the History of Musical Pitch: Monographs / by Alexander J. Ellis & Arthur Mendel. Amsterdam: Frits Knuf, 1968.

Ellis, Alexander J., and Arthur Mendel. Studies in the History of Musical Pitch: Monographs / by Alexander J. Ellis & Arthur Mendel. Frits Knuf, 1968.