Madsen, O. (1998). A multi-year plan for age group swimming development. The World Swimming Coaches Association Gold Medal Clinic Series, Volume 2, Fort Lauderdale: The World Swimming Coaches Association (Hrsg.), 1998. - S. 28-36, 6 Tab..
APA-Zitierstil (7. Ausg.)Madsen, O. (1998). A multi-year plan for age group swimming development The World Swimming Coaches Association Gold Medal Clinic Series, Volume 2.
Chicago-Zitierstil (17. Ausg.)Madsen, O. "A Multi-year Plan for Age Group Swimming Development." The World Swimming Coaches Association Gold Medal Clinic Series, Volume 2 1998.
MLA-Zitierstil (9. Ausg.)Madsen, O. "A Multi-year Plan for Age Group Swimming Development." The World Swimming Coaches Association Gold Medal Clinic Series, Volume 2, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.