Freeman, J. (1998). The preparation of Gretchen Hegener, America, 100 breaststroke record holder. The World Clinic Series, Volume 29, Fort Lauderdale: The American Swimming Coaches Association (Hrsg.), 1998. - S. 29-42, Tab..
APA (7th ed.) CitationFreeman, J. (1998). The preparation of Gretchen Hegener, America, 100 breaststroke record holder The World Clinic Series, Volume 29.
Chicago Style (17th ed.) CitationFreeman, J. "The Preparation of Gretchen Hegener, America, 100 Breaststroke Record Holder." The World Clinic Series, Volume 29 1998.
MLA (9th ed.) CitationFreeman, J. "The Preparation of Gretchen Hegener, America, 100 Breaststroke Record Holder." The World Clinic Series, Volume 29, 1998.
Warning: These citations may not always be 100% accurate.