APA引文

Thornton, A. P. (1977). Imperialism in the twentieth century. University of Minnesota Press.

Chicago Style (17th ed.) Citation

Thornton, A. P. Imperialism in the Twentieth Century. Minneapolis: University of Minnesota Press, 1977.

MLA引文

Thornton, A. P. Imperialism in the Twentieth Century. University of Minnesota Press, 1977.