Παραπομπή σε μορφή APA (7η εκδ.)

Burger, W. V. (1935). Teacher's manual for Ditto directed study lessons in American history. Ditto, Inc..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Burger, William V. Teacher's Manual for Ditto Directed Study Lessons in American History. Chicago: Ditto, Inc., 1935.

Παραπομπή σε μορφή MLA (8th εκδ.)

Burger, William V. Teacher's Manual for Ditto Directed Study Lessons in American History. Ditto, Inc., 1935.