Bud Collins, The Bud Collins History of Tennis, New York, New Chapter Press, , 2. painos (ISBN978-0-942257-70-0, OCLC 456175786), s. 639. Tieto on haettu Wikidatasta.
worldcat.org
Bud Collins, The Bud Collins History of Tennis, New York, New Chapter Press, , 2. painos (ISBN978-0-942257-70-0, OCLC 456175786), s. 639. Tieto on haettu Wikidatasta.