APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.