O'Brien, K. (2004, 21. April). Underwater video cameras. Zugriff unter http://www.swiminfo.com/articles/swimtechnique/articles/199807-01st_art.asp
APA (7th ed.) CitationO'Brien, K. (1998). Underwater video cameras. Swimming Technique.
Chicago Style (17th ed.) CitationO'Brien, K. "Underwater Video Cameras." Swimming Technique 1998.
MLA (9th ed.) CitationO'Brien, K. "Underwater Video Cameras." Swimming Technique, 1998.
Warning: These citations may not always be 100% accurate.