TY - GEN AU - Marcus , Bess H. AU - Forsyth , LeighAnn H. Blair , Steven TI - Mortivating people to be physically active SN - 0736040641 U1 - 615.82 PY - 2003/// CY - Champaign PB - Human Kinetics KW - PHYSICAL FITNESS KW - EXERCISE PSYCHOLOGICAL ASPECTS KW - MEDICAL SCIENCES ER -