APA (7th ed.) Citation

HURLBUT, C. S. (1979). Gemology - Coenelius S. Hurbur, Jr. George S. Switzer. John Wiley & Sons.

Chicago Style (17th ed.) Citation

HURLBUT, Cornelius S. Gemology - Coenelius S. Hurbur, Jr. George S. Switzer. John Wiley & Sons, 1979.

MLA (8th ed.) Citation

HURLBUT, Cornelius S. Gemology - Coenelius S. Hurbur, Jr. George S. Switzer. John Wiley & Sons, 1979.

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