Cita APA (7a ed.)

Nicolson, H. (1977). The evolution of diplomatic method. Greenwood Press.

Cita Chicago Style (17a ed.)

Nicolson, Harold. The Evolution of Diplomatic Method. Westport, Conn.: Greenwood Press, 1977.

Cita MLA (9a ed.)

Nicolson, Harold. The Evolution of Diplomatic Method. Greenwood Press, 1977.