Style de citation APA (7e éd.)

Polk, P. (2016). Collecting rocks, gems and minerals: Identification, values, lapidary uses (3rd edition.). Krause Publications, a division of F+W Media, Inc..

Style de citation Chicago (17e éd.)

Polk, Patti. Collecting Rocks, Gems and Minerals: Identification, Values, Lapidary Uses. 3rd edition. Iola, WI: Krause Publications, a division of F+W Media, Inc., 2016.

Style de citation MLA (8e éd.)

Polk, Patti. Collecting Rocks, Gems and Minerals: Identification, Values, Lapidary Uses. 3rd edition. Krause Publications, a division of F+W Media, Inc., 2016.

Attention : ces citations peuvent ne pas être correctes à 100%.