Cita APA (7a ed.)

Engeln, O. D. V., & Caster, K. E. (1952). Geology. McGraw-Hill.

Cita Chicago Style (17a ed.)

Engeln, O. D. Von, y Kenneth E. Caster. Geology. New York: McGraw-Hill, 1952.

Cita MLA (8a ed.)

Engeln, O. D. Von, y Kenneth E. Caster. Geology. McGraw-Hill, 1952.