ROBERTS, RAPP, & WEBER. (1974). Encyclopedia of minerals. Van Nostrand Reinhold.
Chicago Style (17th ed.) CitationROBERTS, RAPP, and WEBER. Encyclopedia of Minerals. New York: Van Nostrand Reinhold, 1974.
MLA (8th ed.) CitationROBERTS, et al. Encyclopedia of Minerals. Van Nostrand Reinhold, 1974.
Warning: These citations may not always be 100% accurate.