APA (7th ed.) Citation

Macksey, K., & Woodhouse, W. (1991). The Penguin encyclopedia of modern warfare 1850 to the present day.

Chicago Style (17th ed.) Citation

Macksey, Kenneth, and William Woodhouse. The Penguin Encyclopedia of Modern Warfare 1850 to the Present Day. London ; New York, NY, USA : Viking, 1991.

MLA (9th ed.) Citation

Macksey, Kenneth, and William Woodhouse. The Penguin Encyclopedia of Modern Warfare 1850 to the Present Day. 1991.