APA (7th ed.) Citation

Oman, C. A history of the Peninsular War, Vol. 4, Dec. 1810-Dec. 1811.

Chicago Style (17th ed.) Citation

Oman, Charles. A History of the Peninsular War, Vol. 4, Dec. 1810-Dec. 1811.

MLA (9th ed.) Citation

Oman, Charles. A History of the Peninsular War, Vol. 4, Dec. 1810-Dec. 1811.

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