APA (7th ed.) Citation

Clark, G. N. (1958). War and society in the seventeenth century. University Press.

Chicago Style (17th ed.) Citation

Clark, George Norman. War and Society in the Seventeenth Century. Cambridge [England]: University Press, 1958.

MLA (9th ed.) Citation

Clark, George Norman. War and Society in the Seventeenth Century. University Press, 1958.