Rodrignez, E. (2012). Elements of crystals, rocks and ores. Nyx Academics LLC.
Čikaški stil citiranja (17. izdanje)Rodrignez, Eddie. Elements of Crystals, Rocks and Ores. New Castle, DE: Nyx Academics LLC, 2012.
MLA način citiranja (8. izdanje)Rodrignez, Eddie. Elements of Crystals, Rocks and Ores. Nyx Academics LLC, 2012.
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