Dietrich, R. V. (1983). Minerals, rocks, and fossils. John Wiley and Sons.
Cita Chicago (17th ed.)Dietrich, R. V. Minerals, Rocks, and Fossils. John Wiley and Sons, 1983.
Cita MLA (9th ed.)Dietrich, R. V. Minerals, Rocks, and Fossils. John Wiley and Sons, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.