Petrochenkov, D. A. (2019). Gemological characteristics of jewelry-ornamental septaria of the Ulyanovsk region. Sergo Ordzhonikidze Russian State University for Geological Prospecting.
Chicago Style (17th ed.) CitationPetrochenkov, D. A. Gemological Characteristics of Jewelry-ornamental Septaria of the Ulyanovsk Region. Sergo Ordzhonikidze Russian State University for Geological Prospecting, 2019.
MLA (9th ed.) CitationPetrochenkov, D. A. Gemological Characteristics of Jewelry-ornamental Septaria of the Ulyanovsk Region. Sergo Ordzhonikidze Russian State University for Geological Prospecting, 2019.
Warning: These citations may not always be 100% accurate.