Cita APA (7th ed.)

Shelton, J. S. (1966). Geology illustrated. W. H. Freeman.

Cita Chicago (17th ed.)

Shelton, John S. Geology Illustrated. San Francisco: W. H. Freeman, 1966.

Cita MLA (9th ed.)

Shelton, John S. Geology Illustrated. W. H. Freeman, 1966.