Knudson, L. (2011, 27. September). Distance running. Zugriff unter http://www.nacactfca.org/Knudson%20-%20Systematic%26ComprehensiveProgram.pdf
APA (7th ed.) CitationKnudson, L. (2010). Distance running.
Chicago Style (17th ed.) CitationKnudson, L. Distance Running. 2010.
MLA (9th ed.) CitationKnudson, L. Distance Running. 2010.
Warning: These citations may not always be 100% accurate.