Borner, R. (1962). Minerals rocks and gemstones tr by W Mykora.
Chicago Edition CitationBorner, Rudolf. Minerals Rocks and Gemstones Tr by W Mykora. 1962.
MLA Edition CitationBorner, Rudolf. Minerals Rocks and Gemstones Tr by W Mykora. 1962.
Warning: These citations may not always be 100% accurate.