Citazione APA

Betten, F. S. (1924). Historical terms and facts: A reference book for students of history. Allyn and Bacon.

Stile di citazione Chicago

Betten, Francis S. Historical Terms and Facts: A Reference Book for Students of History. Boston ; New York [etc.]: Allyn and Bacon, 1924.

Citazione MLA

Betten, Francis S. Historical Terms and Facts: A Reference Book for Students of History. Allyn and Bacon, 1924.