Boulding , K. (1964). The meaning of the twentieth centuary: The great transition. Allen and unwin.
Chicago Style citaatBoulding , Kenneth. The Meaning of the Twentieth Centuary: The Great Transition. London: Allen and unwin, 1964.
MLA citatieBoulding , Kenneth. The Meaning of the Twentieth Centuary: The Great Transition. Allen and unwin, 1964.
Let op: Deze citaties zijn niet altijd 100% accuraat.