APA (7e ed.) Bronvermelding

Barnes, C. W. (1980). Earth, time, and life: An introduction to geology. John Wiley.

Chicago (17e ed.) Bronvermelding

Barnes, Charles W. Earth, Time, and Life: An Introduction to Geology. New York:: John Wiley, 1980.

MLA (9e ed.) Bronvermelding

Barnes, Charles W. Earth, Time, and Life: An Introduction to Geology. John Wiley, 1980.