Spender, P. C. S. (1969). Exercises in diplomacy: The ANZUS treaty and the Colombo Plan. New York University Press.
Lua i Stíl Chicago (17ú heag.)Spender, Percy Claude Sir. Exercises in Diplomacy: The ANZUS Treaty and the Colombo Plan. [New York]: New York University Press, 1969.
Lua MLA (9ú heag.)Spender, Percy Claude Sir. Exercises in Diplomacy: The ANZUS Treaty and the Colombo Plan. New York University Press, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.