Gordon, E. E. (1987). The nature, description, measurement, and evaluation of music aptitudes. G.I.A. Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGordon, Edwin E. The Nature, Description, Measurement, and Evaluation of Music Aptitudes. Chicago: G.I.A. Pub, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGordon, Edwin E. The Nature, Description, Measurement, and Evaluation of Music Aptitudes. G.I.A. Pub, 1987.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.