Παραπομπή σε μορφή APA (7η εκδ.)

Wheeler, O., & Tenggren, G. (1943). Sing for Christmas: A round of Christmas carols and stories of the carols. E.P. Dutton and Company, Inc..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wheeler, Opal, και Gustaf Tenggren. Sing for Christmas: A Round of Christmas Carols and Stories of the Carols. New York, N.Y.: E.P. Dutton and Company, Inc., 1943.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wheeler, Opal, και Gustaf Tenggren. Sing for Christmas: A Round of Christmas Carols and Stories of the Carols. E.P. Dutton and Company, Inc., 1943.