Bray, K & Kerwin, D. (2002, 10. May). The Mechanics of Ball Flight. Zugriff unter http://www.bath.ac.uk/sport-science/research/biomechanics/football1.html
APA (7th ed.) CitationBray, K., & Kerwin, D. The Mechanics of Ball Flight.
Chicago Style (17th ed.) CitationBray, K., and D. Kerwin. The Mechanics of Ball Flight.
MLA (9th ed.) CitationBray, K., and D. Kerwin. The Mechanics of Ball Flight.
Warning: These citations may not always be 100% accurate.