TY  - BOOK
AU  - Rejeski,Jack W.
AU  - 
TI  - Fitness motivation : : preventing participant dropout
SN  - 0873229282
U1  - 613.7019 23
PY  - 1988///
CY  - Illinois : 
PB  - Life Enhancement Publications , 
KW  - Physical fitness - Psychological aspects ; Motivation
ER  -