APA (7th ed.) Citation

Sinkankas, J. (1955). Gem cutting: A Lapidary's Manual. Van.

Chicago Style (17th ed.) Citation

Sinkankas, John. Gem Cutting: A Lapidary's Manual. New York: Van, 1955.

MLA (9th ed.) Citation

Sinkankas, John. Gem Cutting: A Lapidary's Manual. Van, 1955.

Warning: These citations may not always be 100% accurate.