APA (7th ed.) Citation

Romaine, G. (2020). Rocks, gems, and minerals of the Rocky Mountains (Second edition.). FalconGuides, an imprint of Globe Pequot Press.

Chicago Style (17th ed.) Citation

Romaine, Garret. Rocks, Gems, and Minerals of the Rocky Mountains. Second edition. Guilford, Connecticut: FalconGuides, an imprint of Globe Pequot Press, 2020.

MLA (9th ed.) Citation

Romaine, Garret. Rocks, Gems, and Minerals of the Rocky Mountains. Second edition. FalconGuides, an imprint of Globe Pequot Press, 2020.