Cita APA (7th ed.)

Quick, L., & Leiper, H. (1959). Gemcraft: How to cut and polish gemstones. Chilton.

Cita Chicago (17th ed.)

Quick, Lelande, i Hugh Leiper. Gemcraft: How to Cut and Polish Gemstones. Philadelphia: Chilton, 1959.

Cita MLA (9th ed.)

Quick, Lelande, i Hugh Leiper. Gemcraft: How to Cut and Polish Gemstones. Chilton, 1959.