Crossley, J. (2006). Personal training: Theory and practice. Hodder Arnold.
Chicago Style aipamenaCrossley, James. Personal Training: Theory and Practice. London: Hodder Arnold, 2006.
MLA aipamenaCrossley, James. Personal Training: Theory and Practice. Hodder Arnold, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.