APA (7 ম সংস্করণ) উদ্ধৃতি

Coffin, B. (1980). Coffin's overtones of bel canto: Phonetic basis of artistic singing with 100 chromatic vowel-chart exercises / by Berton Coffin. Scarecrow Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Coffin, Berton. Coffin's Overtones of Bel Canto: Phonetic Basis of Artistic Singing with 100 Chromatic Vowel-chart Exercises / by Berton Coffin. Metuchen, N.J.: Scarecrow Press, 1980.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Coffin, Berton. Coffin's Overtones of Bel Canto: Phonetic Basis of Artistic Singing with 100 Chromatic Vowel-chart Exercises / by Berton Coffin. Scarecrow Press, 1980.