APA (7th ed.) Citation

Langford, P. (1976). The eighteenth century, 1688-1815. A. and C. Black.

Chicago Style (17th ed.) Citation

Langford, Paul. The Eighteenth Century, 1688-1815. London: A. and C. Black, 1976.

MLA (9th ed.) Citation

Langford, Paul. The Eighteenth Century, 1688-1815. A. and C. Black, 1976.