Παραπομπή σε μορφή APA (7η εκδ.)

O'Donnell, M. (1950). Guidebook for Singing wheels: Fourth year (1950 edition.). Row, Peterson and Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Donnell, Mabel. Guidebook for Singing Wheels: Fourth Year. 1950 edition. Evanston, Illinois ; White Plains, New York: Row, Peterson and Company, 1950.

Παραπομπή σε μορφή MLA (8th εκδ.)

O'Donnell, Mabel. Guidebook for Singing Wheels: Fourth Year. 1950 edition. Row, Peterson and Company, 1950.