APA (7th ed.) Citation

Biech, E. 90 world-class activities by 90 world-class trainers.

Chicago Style (17th ed.) Citation

Biech, Elaine. 90 World-class Activities by 90 World-class Trainers.

MLA (8th ed.) Citation

Biech, Elaine. 90 World-class Activities by 90 World-class Trainers.

Warning: These citations may not always be 100% accurate.