Schwarzer, R. (2016). Health Action Process Approach (HAPA) as a Theoretical Framework to Understand Behavior Change. Universidad de Costa Rica.
Chicago-Zitierstil (17. Ausg.)Schwarzer, Ralf. Health Action Process Approach (HAPA) as a Theoretical Framework to Understand Behavior Change. Universidad de Costa Rica, 2016.
MLA-Zitierstil (9. Ausg.)Schwarzer, Ralf. Health Action Process Approach (HAPA) as a Theoretical Framework to Understand Behavior Change. Universidad de Costa Rica, 2016.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.