Brubaker, S. (1972). To live on earth: Man and his environment in perspective. New American Library.
Chicago (17e ed.) BronvermeldingBrubaker, Sterling. To Live on Earth: Man and His Environment in Perspective. New York: New American Library, 1972.
MLA (9e ed.) BronvermeldingBrubaker, Sterling. To Live on Earth: Man and His Environment in Perspective. New American Library, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.