APA引文

Gottschalk, L. R. (1960). Understanding history: A primer of historical method. Knopf.

Chicago Style (17th ed.) Citation

Gottschalk, Louis Reichenthal. Understanding History: A Primer of Historical Method. New York: Knopf, 1960.

MLA引文

Gottschalk, Louis Reichenthal. Understanding History: A Primer of Historical Method. Knopf, 1960.