Burnam, E. M. (1964). A dozen a day: Technical exercises for the piano to be done each day before practicing. Willis Music.
Παραπομπή σε μορφή Chicago (17η εκδ.)Burnam, Edna Mae. A Dozen a Day: Technical Exercises for the Piano to Be Done Each Day Before Practicing. Cincinnati, Ohio: Willis Music, 1964.
Παραπομπή σε μορφή MLA (9th εκδ.)Burnam, Edna Mae. A Dozen a Day: Technical Exercises for the Piano to Be Done Each Day Before Practicing. Willis Music, 1964.
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