APA (7th ed.) Citation

Diack, W. (1899). Boer and Britain in South Africa: A historical sketch. Twentieth Century Press.

Chicago Style (17th ed.) Citation

Diack, William. Boer and Britain in South Africa: A Historical Sketch. London, England: Twentieth Century Press, 1899.

MLA (8th ed.) Citation

Diack, William. Boer and Britain in South Africa: A Historical Sketch. Twentieth Century Press, 1899.