Gray, D. E. (1966). Man and his physical world. D. Van Nostrand.
Chicago Style (17th ed.) CitationGray, Dwight E. Man and His Physical World. Princeton: D. Van Nostrand, 1966.
MLA引文Gray, Dwight E. Man and His Physical World. D. Van Nostrand, 1966.
警告:這些引文格式不一定是100%准確.