APA引文

Guelzo, A. C. (2013). Gettysburg: The last invasion (First edition.). Alfred A. Knopf.

Chicago Style (17th ed.) Citation

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

MLA引文

Guelzo, Allen C. Gettysburg: The Last Invasion. First edition. Alfred A. Knopf, 2013.

警告：這些引文格式不一定是100％准確.