APA (7th ed.) Citation

Van Loon, H. W. (1940). The story of the Pacific. George G. Harrap.

Chicago Style (17th ed.) Citation

Van Loon, Hendrik Willem. The Story of the Pacific. London: George G. Harrap, 1940.

MLA (9th ed.) Citation

Van Loon, Hendrik Willem. The Story of the Pacific. George G. Harrap, 1940.