Sinkankas, J. (1962). Gem Cutting: A Lapidary's Manual (2nd ed.). Van Nostrand Reinhold Company.
Chicago Edition CitationSinkankas, John. Gem Cutting: A Lapidary's Manual. 2nd ed. New York: Van Nostrand Reinhold Company, 1962.
MLA Edition CitationSinkankas, John. Gem Cutting: A Lapidary's Manual. 2nd ed. Van Nostrand Reinhold Company, 1962.
Warning: These citations may not always be 100% accurate.