Farndon, J. (2012). The illustrated guide to rocks & minerals: How to find, identify and collect the world's most fascinating specimens, featuring over 800 stunning photographs and artworks. Southwater.
Lua i Stíl Chicago (17ú heag.)Farndon, John. The Illustrated Guide to Rocks & Minerals: How to Find, Identify and Collect the World's Most Fascinating Specimens, Featuring over 800 Stunning Photographs and Artworks. London: Southwater, 2012.
Lua MLA (9ú heag.)Farndon, John. The Illustrated Guide to Rocks & Minerals: How to Find, Identify and Collect the World's Most Fascinating Specimens, Featuring over 800 Stunning Photographs and Artworks. Southwater, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.