Dyfyniad APA

Winchell, A. N. (1968). Elements of optical mineralogy: :An introduction to microscopic petrography part II-description of minerals. Wiley eastern.

Dyfyniad Arddull Chicago

Winchell, Alexander N. Elements of Optical Mineralogy: :An Introduction to Microscopic Petrography Part II-description of Minerals. New Delhi: Wiley eastern, 1968.

Dyfyniad MLA

Winchell, Alexander N. Elements of Optical Mineralogy: :An Introduction to Microscopic Petrography Part II-description of Minerals. Wiley eastern, 1968.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.