APA (7e ed.) Bronvermelding

Stokes, W. L., & Judson, S. (1968). Introduction to geology, physical and historical. Prentice-Hall.

Chicago (17e ed.) Bronvermelding

Stokes, William Lee, en Sheldon Judson. Introduction to Geology, Physical and Historical. Englewood Cliffs, N.J: Prentice-Hall, 1968.

MLA (9e ed.) Bronvermelding

Stokes, William Lee, en Sheldon Judson. Introduction to Geology, Physical and Historical. Prentice-Hall, 1968.