APA (7th ed.) Citation

Cronon, E. D. (1965). Twentieth century America: Selected readings. Dorsey Press.

Chicago Style (17th ed.) Citation

Cronon, Edmund David. Twentieth Century America: Selected Readings. Homewood, Ill: Dorsey Press, 1965.

MLA (9th ed.) Citation

Cronon, Edmund David. Twentieth Century America: Selected Readings. Dorsey Press, 1965.