Boulding, K. E. (1965). The meaning of the twentieth century: The great transition. Harper & Row Publishers.
Style de citation Chicago (17e éd.)Boulding, Kenneth Ewart. The Meaning of the Twentieth Century: The Great Transition. New York: Harper & Row Publishers, 1965.
Style de citation MLA (9e éd.)Boulding, Kenneth Ewart. The Meaning of the Twentieth Century: The Great Transition. Harper & Row Publishers, 1965.
Attention : ces citations peuvent ne pas être correctes à 100%.