Stokes, W. L. (1960). Essentials of earth history, an introduction to historical geology (2a ed.). Prentice-Hall, Inc..
Cita Chicago Style (17a ed.)Stokes, William Lee. Essentials of Earth History, an Introduction to Historical Geology. 2a ed. Englewood Cliffs, New Jersey: Prentice-Hall, Inc., 1960.
Cita MLA (9a ed.)Stokes, William Lee. Essentials of Earth History, an Introduction to Historical Geology. 2a ed. Prentice-Hall, Inc., 1960.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.