APA (7th ed.) Citation

Stokes, W. L. (1982). Essentials of earth history: An introduction to historical geology (4th ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Stokes, William Lee. Essentials of Earth History: An Introduction to Historical Geology. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1982.

MLA (9th ed.) Citation

Stokes, William Lee. Essentials of Earth History: An Introduction to Historical Geology. 4th ed. Prentice-Hall, 1982.