TY - BOOK AU - Roberts,Glyn C. TI - Motivation in sport and exercise SN - 0873223454 PY - 1992/// CY - Champaign, Ill. PB - Human Kinetics KW - Sports KW - Psychological aspects KW - Congresses KW - Exercise KW - Motivation (Psychology) N1 - Papers previously presented at a symposium held at the University of Illinois in November of 1989; Includes bibliographical references : (p. 217-251) and index ER -