APA (7th ed.) Citation

Roach, J. P. C. (1968). A bibliography of modern history. Cambridge University Press.

Chicago Style (17th ed.) Citation

Roach, John Peter Charles. A Bibliography of Modern History. London: Cambridge University Press, 1968.

MLA (9th ed.) Citation

Roach, John Peter Charles. A Bibliography of Modern History. Cambridge University Press, 1968.