APA-referens

Boulding, K. E. (1964). The meaning of the twentieth century: The great transition. New York: Harper & Row publishers.

Chicago-stil citat

Boulding, Kenneth E. The Meaning of the Twentieth Century: The Great Transition. New York: Harper & Row publishers, 1964.

MLA-referens

Boulding, Kenneth E. The Meaning of the Twentieth Century: The Great Transition. New York: Harper & Row publishers, 1964.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.