Fees, B. S., Martin, P., & Poon, L. W. (1999). A model of loneliness in older adults. The journals of gerontology. Series B, Psychological sciences, social sciences, 54(4), . https://doi.org/10.1093/geronb/54B.4.P231
Chicago-Zitierstil (17. Ausg.)Fees, Bronwyn S., Peter Martin, und Leonard W. Poon. "A Model of Loneliness in Older Adults." The Journals of Gerontology. Series B, Psychological Sciences, Social Sciences 54, no. 4 (1999). https://doi.org/10.1093/geronb/54B.4.P231.
MLA-Zitierstil (9. Ausg.)Fees, Bronwyn S., et al. "A Model of Loneliness in Older Adults." The Journals of Gerontology. Series B, Psychological Sciences, Social Sciences, vol. 54, no. 4, 1999, https://doi.org/10.1093/geronb/54B.4.P231.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.