Race, P., & Smith, B. (1995). 500 tips for trainers. Kogan Page.
Chicago Style aipamenaRace, Phil, and Brenda Smith. 500 Tips for Trainers. London: Kogan Page, 1995.
MLA aipamenaRace, Phil, and Brenda Smith. 500 Tips for Trainers. Kogan Page, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.