Παραπομπή APA

Hudson, G. F. (1968). Fifty Years of Communism. C.A. Watts.

Παραπομπή Chicago Style

Hudson, G F. Fifty Years of Communism. London: C.A. Watts, 1968.

Παραπομπή MLA

Hudson, G F. Fifty Years of Communism. C.A. Watts, 1968.