APA (7th ed.) Citation

Nicolson, H. (1954). The evolution of diplomatic method. Constable.

Chicago Style (17th ed.) Citation

Nicolson, Harold. The Evolution of Diplomatic Method. London: Constable, 1954.

MLA (9th ed.) Citation

Nicolson, Harold. The Evolution of Diplomatic Method. Constable, 1954.

Warning: These citations may not always be 100% accurate.