APA citáció

Constantina C & Pop Dana. (2003). Brief overview on the SiO2 varieties of gem-quality from Southern Apuseni mountains (Romania). Szeged.

Chicago Style (17th ed.) Citation

Constantina C and Pop Dana. Brief Overview on the SiO2 Varieties of Gem-quality from Southern Apuseni Mountains (Romania). Department of Mineralogy, Geochemistry and Petrology, University of Szeged: Szeged, 2003.

MLA idézés

Constantina C and Pop Dana. Brief Overview on the SiO2 Varieties of Gem-quality from Southern Apuseni Mountains (Romania). Szeged, 2003.