APA (7e ed.) Bronvermelding

Brubaker, S. (1972). To live on earth: Man and his environment in perspective. New American Library.

Chicago (17e ed.) Bronvermelding

Brubaker, Sterling. To Live on Earth: Man and His Environment in Perspective. New York: New American Library, 1972.

MLA (9e ed.) Bronvermelding

Brubaker, Sterling. To Live on Earth: Man and His Environment in Perspective. New American Library, 1972.