Cita APA (7th ed.)

Tholfsen, T. R. (1967). Historical thinking: An introduction. Harper & Row.

Cita Chicago (17th ed.)

Tholfsen, Trygve R. Historical Thinking: An Introduction. New York: Harper & Row, 1967.

Cita MLA (8th ed.)

Tholfsen, Trygve R. Historical Thinking: An Introduction. Harper & Row, 1967.