Whitman, D. B. (2025). The second fifty: Answers to the 7 big questions of midlife and beyond (Large print edition.). Thorndike Press, a part of Gale, a Cengage Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWhitman, Debra B. The Second Fifty: Answers to the 7 Big Questions of Midlife and Beyond. Large print edition. [Waterville, Maine]: Thorndike Press, a part of Gale, a Cengage Company, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWhitman, Debra B. The Second Fifty: Answers to the 7 Big Questions of Midlife and Beyond. Large print edition. Thorndike Press, a part of Gale, a Cengage Company, 2025.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.