APA aipamena

Boulding , K. (1964). The meaning of the twentieth centuary: The great transition. Allen and unwin.

Chicago Style aipamena

Boulding , Kenneth. The Meaning of the Twentieth Centuary: The Great Transition. London: Allen and unwin, 1964.

MLA aipamena

Boulding , Kenneth. The Meaning of the Twentieth Centuary: The Great Transition. Allen and unwin, 1964.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.