Twenge, J. M., Lyubomirsky, S., & Sherman, R. A. (2016). More happiness for young people and less for mature adults: Time period differences in subjective well-being in the United States, 1972-2014. Social psychological and personality science, 7(2), 131-141. doi:10.1177/1948550615602933
Chicago-Zitierstil (17. Ausg.)Twenge, Jean M., Sonja Lyubomirsky, und Ryne A. Sherman. "More Happiness for Young People and Less for Mature Adults: Time Period Differences in Subjective Well-being in the United States, 1972-2014." Social Psychological and Personality Science 7, no. 2 (2016): 131-141. https://doi.org/10.1177/1948550615602933.
MLA-Zitierstil (9. Ausg.)Twenge, Jean M., et al. "More Happiness for Young People and Less for Mature Adults: Time Period Differences in Subjective Well-being in the United States, 1972-2014." Social Psychological and Personality Science, vol. 7, no. 2, 2016, pp. 131-141, https://doi.org/10.1177/1948550615602933.