(2007). 90 world-class activities by 90 world-class trainers. San Francisco, CA: J. Wiley & Sons.
Chicago Zitierstil90 World-class Activities By 90 World-class Trainers. San Francisco, CA: J. Wiley & Sons, 2007.
MLA Zitierstil90 World-class Activities By 90 World-class Trainers. San Francisco, CA: J. Wiley & Sons, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.