Citazione Stile APA (7a Edizione)

Guess, G. M. (1987). The politics of United States foreign aid. Croom Helm.

Citazione stile Chigago Style (17a edizione)

Guess, George M. The Politics of United States Foreign Aid. London: Croom Helm, 1987.

Citatione MLA (9a ed.)

Guess, George M. The Politics of United States Foreign Aid. Croom Helm, 1987.