APA (7th ed.) Citation

Boulding, K. E. (1964). The Meaning of the twentieth century: The great transition. World perspectives.

Chicago Style (17th ed.) Citation

Boulding, Kenneth Ewart. "The Meaning of the Twentieth Century: The Great Transition." World Perspectives 1964.

MLA (8th ed.) Citation

Boulding, Kenneth Ewart. "The Meaning of the Twentieth Century: The Great Transition." World Perspectives, 1964.