APA Citation

Guelzo, A. C. (2013). Gettysburg: The last invasion. New York: Alfred A. Knopf.

Chicago Style Citation

Guelzo, Allen C. Gettysburg: The Last Invasion. New York: Alfred A. Knopf, 2013.

MLA Citation

Guelzo, Allen C. Gettysburg: The Last Invasion. New York: Alfred A. Knopf, 2013.

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