Birken, E. G., & Beaulieu, C. (2016). The five years before you retire: Retirement planning when you need it the most (Unabridged.). Tantor Media.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBirken, Emily Guy, और Callie Beaulieu. The Five Years Before You Retire: Retirement Planning When You Need It the Most. Unabridged. Old Saybrook: Tantor Media, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBirken, Emily Guy, और Callie Beaulieu. The Five Years Before You Retire: Retirement Planning When You Need It the Most. Unabridged. Tantor Media, 2016.
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