Styl cytowania APA

Thornton, A. P. (1980). Imperialism in the Twentieth Century. Macmillan Press.

Styl cytowania Chicago

Thornton, A. P. Imperialism in the Twentieth Century. London ; Basingstoke: Macmillan Press, 1980.

Styl cytowania MLA

Thornton, A. P. Imperialism in the Twentieth Century. Macmillan Press, 1980.