Murphy, P., Phillips, J., West Marvin, E., & Piper Clendinning, J. (2021). The Musician's Guide to aural Skills Ear-Training: Paul Murphy, Joel Phillips (autores) (cuarta edición.). W. W. Norton & Company, Ltd.
Chicago-viite (17. p.)Murphy, Paul, Joel Phillips, Elizabeth West Marvin, ja Jane Piper Clendinning. The Musician's Guide to Aural Skills Ear-Training: Paul Murphy, Joel Phillips (autores). cuarta edición. New York, NY: W. W. Norton & Company, Ltd, 2021.
MLA-viite (9. p.)Murphy, Paul, et al. The Musician's Guide to Aural Skills Ear-Training: Paul Murphy, Joel Phillips (autores). cuarta edición. W. W. Norton & Company, Ltd, 2021.
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