APA (7th ed.) Citation

McClellan, G. B. The Mexican War diary of George B. McClellan.

Chicago Style (17th ed.) Citation

McClellan, George B. The Mexican War Diary of George B. McClellan.

MLA (9th ed.) Citation

McClellan, George B. The Mexican War Diary of George B. McClellan.

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