Friskin, J., & Freundlich, I. (1954). Music for the piano: A handbook of concert and teaching material from 1580 to 1952. Rinehart.
Chicago-viite (17. p.)Friskin, James, ja Irwin Freundlich. Music for the Piano: A Handbook of Concert and Teaching Material from 1580 to 1952. New York: Rinehart, 1954.
MLA-viite (9. p.)Friskin, James, ja Irwin Freundlich. Music for the Piano: A Handbook of Concert and Teaching Material from 1580 to 1952. Rinehart, 1954.
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