Cita APA (7a ed.)

Stokes, W. L. (1966). Essentials of earth history: An introduction to historical geology (2nd ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Stokes, William Lee. Essentials of Earth History: An Introduction to Historical Geology. 2nd ed. Englewood Cliffs: Prentice-Hall, 1966.

Cita MLA (8a ed.)

Stokes, William Lee. Essentials of Earth History: An Introduction to Historical Geology. 2nd ed. Prentice-Hall, 1966.