APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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