Watson, J. L. (1988). Symmetrical English 1 ... c5. Macmillan.
Chicago Style (17th ed.) CitationWatson, John L. Symmetrical English 1 ... C5. New York: Macmillan, 1988.
MLA引文Watson, John L. Symmetrical English 1 ... C5. Macmillan, 1988.
警告:這些引文格式不一定是100%准確.