Cita APA (7a ed.)

Romaine, G. (2015). Rocks, gems, and minerals (Second edition.). FalconGuides.

Cita Chicago Style (17a ed.)

Romaine, Garret. Rocks, Gems, and Minerals. Second edition. Guilford, Connecticut: FalconGuides, 2015.

Cita MLA (8a ed.)

Romaine, Garret. Rocks, Gems, and Minerals. Second edition. FalconGuides, 2015.

Precaución: Estas citas no son 100% exactas.