Metz, R., & Fanck, A. E. (1965). Precious stones and other crystals. Viking Press.
Chicago Style (17th ed.) CitationMetz, Rudolf, and Arnold Ernst Fanck. Precious Stones and Other Crystals. New York: Viking Press, 1965.
MLA (9th ed.) CitationMetz, Rudolf, and Arnold Ernst Fanck. Precious Stones and Other Crystals. Viking Press, 1965.
Warning: These citations may not always be 100% accurate.