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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)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.
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