%0 Journal Article
%T Stages of Change, Self-Efficacy, and the Adoption of Vigorous Exercise: A Prospective Analysis
%A Armstrong, Colin A.
%A Sallis, James F.
%A Hovell, Melbourne F.
%A Hofstetter, C. Richard
%A ,
%J Journal of Sport and Exercise Psychology
%V 15
%N 4
%P 390-402
%@ 0895-2779
%D 1993-12-01
%I Human Kinetics
%~ DeepDyve