Sullican, G. (2018). Retirement fail: The 9 reasons people flunk post work life.. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSullican, Greg. Retirement Fail: The 9 Reasons People Flunk Post Work Life.. New Jersey: John Wiley & Sons, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSullican, Greg. Retirement Fail: The 9 Reasons People Flunk Post Work Life.. John Wiley & Sons, 2018.
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