APA (7th ed.) Citation

May, E. R. (1963). The World War and American isolation, 1914-1917. Harvard University Press.

Chicago Style (17th ed.) Citation

May, Ernest R. The World War and American Isolation, 1914-1917. Cambridge: Harvard University Press, 1963.

MLA (9th ed.) Citation

May, Ernest R. The World War and American Isolation, 1914-1917. Harvard University Press, 1963.