Knudson, D. (2002, 16. May). An open & square stance case. Zugriff unter http://coachesinfo.com/index.php?option=com_content&view=article&id=332:tennis-opensquare-article&catid=95:tennis-general-articles&Itemid=173
APA (7th ed.) CitationKnudson, D. An open & square stance case. coachesinfo.com.
Chicago Style (17th ed.) CitationKnudson, D. "An Open & Square Stance Case." Coachesinfo.com .
MLA (9th ed.) CitationKnudson, D. "An Open & Square Stance Case." Coachesinfo.com, .
Warning: These citations may not always be 100% accurate.