APA (7th ed.) Citation

Callières, F. d., Keens-Soper, H. M. A., & Schweizer, K. W. (1983). The art of diplomacy (First published in 1983.). Leicester University Press.

Chicago Style (17th ed.) Citation

Callières, François de, H. M. A. Keens-Soper, and Karl W. Schweizer. The Art of Diplomacy. First published in 1983. [Leicester]: Leicester University Press, 1983.

MLA (9th ed.) Citation

Callières, François de, et al. The Art of Diplomacy. First published in 1983. Leicester University Press, 1983.