Citazione Stile APA (7a Edizione)

COOK, C., & KILLINGRAY, D. (1991). African political facts since 1945. Facts on File.

Citazione stile Chigago Style (17a edizione)

COOK, Chris, e David KILLINGRAY. African Political Facts Since 1945. New York: Facts on File, 1991.

Citatione MLA (9a ed.)

COOK, Chris, e David KILLINGRAY. African Political Facts Since 1945. Facts on File, 1991.