Citazione Stile APA (7a Edizione)

Boulding, K. E. (1965). The meaning of the Twentieth Century: The great transition. Harper and Row.

Citazione stile Chigago Style (17a edizione)

Boulding, Kenneth E. The Meaning of the Twentieth Century: The Great Transition. New York, USA: Harper and Row, 1965.

Citatione MLA (9a ed.)

Boulding, Kenneth E. The Meaning of the Twentieth Century: The Great Transition. Harper and Row, 1965.