APA (7th ed.) Citation

Armstrong, D. M. (1997). A world of states of affairs (1a. ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Armstrong, D. M. A World of States of Affairs. 1a. ed. Nueva York: Cambridge University Press, 1997.

MLA (9th ed.) Citation

Armstrong, D. M. A World of States of Affairs. 1a. ed. Cambridge University Press, 1997.