APA (7th ed.) Citation

Hudson, G. F. (1968). Fifty years of communism theory and practice, 1917-1967. Penguin Books.

Chicago Style (17th ed.) Citation

Hudson, G. F. Fifty Years of Communism Theory and Practice, 1917-1967. Australia: Penguin Books, 1968.

MLA (9th ed.) Citation

Hudson, G. F. Fifty Years of Communism Theory and Practice, 1917-1967. Penguin Books, 1968.

Warning: These citations may not always be 100% accurate.