Rejeski Walter J Fitness motivation : preventing participant dropout / W. Jack Rejeski, Elizabeth A. Kenney. - Champaign, IL : Human kinetics books, 1989. - 156 p. : ill. ; 23 cm. Includes indexes. Bibliography: p. 145-147. ISBN: 0873229282 Subjects--Topical Terms: Physical fitness--Psychological aspectsMotivation PsychologyAerobic exercises LC Class. No.: GV481.2 Dewey Class. No.: 613.7/01/9