APA (7th ed.) Citation

Catton, B. (1963). The battle of Gettysburg. American Heritage Publishing Co.

Chicago Style (17th ed.) Citation

Catton, Bruce. The Battle of Gettysburg. New York: American Heritage Publishing Co, 1963.

MLA (9th ed.) Citation

Catton, Bruce. The Battle of Gettysburg. American Heritage Publishing Co, 1963.

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