Citazione APA

(2007). 90 world-class activities by 90 world-class trainers. San Francisco, CA: J. Wiley & Sons.

Stile di citazione Chicago

90 World-class Activities By 90 World-class Trainers. San Francisco, CA: J. Wiley & Sons, 2007.

Citazione MLA

90 World-class Activities By 90 World-class Trainers. San Francisco, CA: J. Wiley & Sons, 2007.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.