APA (7th ed.) Citation

Koebner, R., & Schmidt, H. D. (1964). Imperialism: The story and significance of a political word, 1840-1960. University Press.

Chicago Style (17th ed.) Citation

Koebner, Richard, and Helmut Dan Schmidt. Imperialism: The Story and Significance of a Political Word, 1840-1960. Cambridge [Eng.]: University Press, 1964.

MLA (9th ed.) Citation

Koebner, Richard, and Helmut Dan Schmidt. Imperialism: The Story and Significance of a Political Word, 1840-1960. University Press, 1964.