Gray, D. E. (1946). Man and his physical world (2nd ed.). D. Van Nostrand Company.
Chicago Style (17th ed.) CitationGray, Dwight E. Man and His Physical World. 2nd ed. New York: D. Van Nostrand Company, 1946.
MLA (8th ed.) CitationGray, Dwight E. Man and His Physical World. 2nd ed. D. Van Nostrand Company, 1946.
Warning: These citations may not always be 100% accurate.
