Atkinson, M. (2012). Key concepts in sport and exercise research methods. SAGE.
Chicago Style aipamenaAtkinson, Michael. Key Concepts in Sport and Exercise Research Methods. London: SAGE, 2012.
MLA aipamenaAtkinson, Michael. Key Concepts in Sport and Exercise Research Methods. SAGE, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.