Kellmann, M., & Kallus, K. W. (2001). Recovery-stress questionnaire for athletes: User manual. Champaign, Ill.: Human Kinetics.
Chicago Style CitationKellmann, Michael, and K. Wolfgang Kallus. Recovery-stress Questionnaire for Athletes: User Manual. Champaign, Ill.: Human Kinetics, 2001.
MLA CitationKellmann, Michael, and K. Wolfgang Kallus. Recovery-stress Questionnaire for Athletes: User Manual. Champaign, Ill.: Human Kinetics, 2001.
Warning: These citations may not always be 100% accurate.