Oswald, F., Wahl, H., & Kaspar, R. (2005). Psychological aspects of outdoor mobility in later life. Enhancing mobility in later life.
Chicago-Zitierstil (17. Ausg.)Oswald, Frank, Hans-Werner Wahl, und Roman Kaspar. "Psychological Aspects of Outdoor Mobility in Later Life." Enhancing Mobility in Later Life 2005.
MLA-Zitierstil (9. Ausg.)Oswald, Frank, et al. "Psychological Aspects of Outdoor Mobility in Later Life." Enhancing Mobility in Later Life, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.