एपीए उद्धरण

Stokes, W. L. (1966). Essentials of earth history: An introduction to historical geology (2d ed.). Englewood Cliffs, N.J.: Prentice-Hall.

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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