Citazione Stile APA (7a Edizione)

DULLES, A. (1963). The craft of intellegence. Harper and Row.

Citazione stile Chigago Style (17a edizione)

DULLES, Allen. The Craft of Intellegence. New York: Harper and Row, 1963.

Citatione MLA (9a ed.)

DULLES, Allen. The Craft of Intellegence. Harper and Row, 1963.