Citazione Stile APA (7a Edizione)

Gheddo, P. (1973). Why is the third world poor ? Orbis Books.

Citazione stile Chigago Style (17a edizione)

Gheddo, Piero. Why Is the Third World Poor ? Nueva York: Orbis Books, 1973.

Citatione MLA (9a ed.)

Gheddo, Piero. Why Is the Third World Poor ? Orbis Books, 1973.