Sullican, G. (2018). Retirement fail: The 9 reasons people flunk post work life.. John Wiley & Sons.
Chicago-referens (17:e uppl.)Sullican, Greg. Retirement Fail: The 9 Reasons People Flunk Post Work Life.. New Jersey: John Wiley & Sons, 2018.
MLA-referens (9:e uppl.)Sullican, Greg. Retirement Fail: The 9 Reasons People Flunk Post Work Life.. John Wiley & Sons, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.