Cita APA (7a ed.)

Skeet, I. (1989). Opec, twenty five years of prices and politics. Cambridge University Press.

Cita Chicago Style (17a ed.)

Skeet, Ian. Opec, Twenty Five Years of Prices and Politics. Cambridge, United Kingdom: Cambridge University Press, 1989.

Cita MLA (9a ed.)

Skeet, Ian. Opec, Twenty Five Years of Prices and Politics. Cambridge University Press, 1989.