APA (7th ed.) Citation

Boritt, G. S. (1997). The Gettysburg nobody knows. Oxford University Press.

Chicago Style (17th ed.) Citation

Boritt, G. S. The Gettysburg Nobody Knows. New York: Oxford University Press, 1997.

MLA (9th ed.) Citation

Boritt, G. S. The Gettysburg Nobody Knows. Oxford University Press, 1997.