APA (7th ed.) Citation

Sawicki, J. A. (1985). Cavalry regiments of the US Army. Wyvern Publications.

Chicago Style (17th ed.) Citation

Sawicki, James A. Cavalry Regiments of the US Army. Dumfries, Va.: Wyvern Publications, 1985.

MLA (8th ed.) Citation

Sawicki, James A. Cavalry Regiments of the US Army. Wyvern Publications, 1985.