Gray, D. E., & Coutts, J. W. (1960). Man and his physical world (3rd ed.).
Chicago Edition CitationGray, Dwight E., and John W. Coutts. Man and His Physical World. 3rd ed. 1960.
MLA Edition CitationGray, Dwight E., and John W. Coutts. Man and His Physical World. 3rd ed. 1960.
Warning: These citations may not always be 100% accurate.