APA (7th ed.) Citation

Boulding, K. E. The meaning of the twentieth century: The great transition. Harper.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.