Sinkankas, J. (1962). Gem cutting: A lapidary's manual (2d ed.). Van Nostrand.
Chicago Style (17th ed.) CitationSinkankas, John. Gem Cutting: A Lapidary's Manual. 2d ed. Princeton, N.J.: Van Nostrand, 1962.
MLA (9th ed.) CitationSinkankas, John. Gem Cutting: A Lapidary's Manual. 2d ed. Van Nostrand, 1962.
Warning: These citations may not always be 100% accurate.