APA (7th ed.) Citation

Voynick, S. M. (1994). Colorado rockhounding: A guide to minerals, gemstones, and fossils. Mountain Press Pub. Co..

Chicago Style (17th ed.) Citation

Voynick, Stephen M. Colorado Rockhounding: A Guide to Minerals, Gemstones, and Fossils. Missoula, Mont.: Mountain Press Pub. Co., 1994.

MLA (9th ed.) Citation

Voynick, Stephen M. Colorado Rockhounding: A Guide to Minerals, Gemstones, and Fossils. Mountain Press Pub. Co., 1994.