APA-referens (7:e uppl.)

Porto, J. A., Vargas, A. A., & Collao, M. E. P. (2016). Fitness for life: Health-optimizing physical education series for senior high school. C & E Publishing, Inc.

Chicago-referens (17:e uppl.)

Porto, Jerome A., Aida A. Vargas, och Mia Elaine P. Collao. Fitness for Life: Health-optimizing Physical Education Series for Senior High School. Quezon City: C & E Publishing, Inc, 2016.

MLA-referens (9:e uppl.)

Porto, Jerome A., et al. Fitness for Life: Health-optimizing Physical Education Series for Senior High School. C & E Publishing, Inc, 2016.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.