APA (7th ed.) Citation

Preston, A. (1987). History of the Royal Navy in the 20th century. Presidio Press.

Chicago Style (17th ed.) Citation

Preston, Antony. History of the Royal Navy in the 20th Century. Novato, CA: Presidio Press, 1987.

MLA (9th ed.) Citation

Preston, Antony. History of the Royal Navy in the 20th Century. Presidio Press, 1987.