APA (7th ed.) Citation

Roberts, W. L., Rapp, G., & Campbell, T. J. (1990). Encyclopedia of minerals / Willard Lincoln Roberts, George Robert Rapp, Jr., Thomas J. Campbell ; photo editor, Wendell E. Wilson (2nd ed.). Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Roberts, Willard Lincoln, George Rapp, and Thomas J. Campbell. Encyclopedia of Minerals / Willard Lincoln Roberts, George Robert Rapp, Jr., Thomas J. Campbell ; Photo Editor, Wendell E. Wilson. 2nd ed. New York: Van Nostrand Reinhold, 1990.

MLA (9th ed.) Citation

Roberts, Willard Lincoln, et al. Encyclopedia of Minerals / Willard Lincoln Roberts, George Robert Rapp, Jr., Thomas J. Campbell ; Photo Editor, Wendell E. Wilson. 2nd ed. Van Nostrand Reinhold, 1990.

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