Coffin, B. (1987). Coffin's sounds of singing: Principles and applications of vocal techniques with chromatic vowel chart (Second edition.). The Scarecrow Press, Incorporated.
Chicago Style (17th ed.) CitationCoffin, Berton. Coffin's Sounds of Singing: Principles and Applications of Vocal Techniques with Chromatic Vowel Chart. Second edition. Lanham, Maryland: The Scarecrow Press, Incorporated, 1987.
MLA (9th ed.) CitationCoffin, Berton. Coffin's Sounds of Singing: Principles and Applications of Vocal Techniques with Chromatic Vowel Chart. Second edition. The Scarecrow Press, Incorporated, 1987.
Warning: These citations may not always be 100% accurate.