APA (7th ed.) Citation

Kohl, H. W., III. (2007). Physical activity recommendations for youth: What fitness professionals should know. Healthy Learning.

Chicago Style (17th ed.) Citation

Kohl, Harold W., III. Physical Activity Recommendations for Youth: What Fitness Professionals Should Know. Monterey, CA: Healthy Learning, 2007.

MLA (9th ed.) Citation

Kohl, Harold W., III. Physical Activity Recommendations for Youth: What Fitness Professionals Should Know. Healthy Learning, 2007.