APA (7th ed.) Citation

Winchell, A. N., & Winchell, N. H. (1951). Elements of optical mineralogy: An introduction to microscopic petrography (4th ed.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Winchell, Alexander N., and Newton Horace Winchell. Elements of Optical Mineralogy: An Introduction to Microscopic Petrography. 4th ed. New York: John Wiley & Sons, 1951.

MLA (9th ed.) Citation

Winchell, Alexander N., and Newton Horace Winchell. Elements of Optical Mineralogy: An Introduction to Microscopic Petrography. 4th ed. John Wiley & Sons, 1951.