APA (7e ed.) Bronvermelding

Postlethwait, J. H., & Hopson, J. L. (1992). The nature of life (2nd ed.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Postlethwait, John H., en Janet L. Hopson. The Nature of Life. 2nd ed. New York: McGraw-Hill, 1992.

MLA (8e ed.) Bronvermelding

Postlethwait, John H., en Janet L. Hopson. The Nature of Life. 2nd ed. McGraw-Hill, 1992.