Groppel, J. L., & Shay, A. (1983). Optimal tennis. Contemporary Books.
Chicago Style (17th ed.) CitationGroppel, Jack L., and Arthur Shay. Optimal Tennis. Chicago: Contemporary Books, 1983.
MLA (9th ed.) CitationGroppel, Jack L., and Arthur Shay. Optimal Tennis. Contemporary Books, 1983.
Warning: These citations may not always be 100% accurate.