Lammers, W. W. (1983). Public policy and the aging. Congressional quarterly.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLammers, Williams W. Public Policy and the Aging. Washington: Congressional quarterly, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLammers, Williams W. Public Policy and the Aging. Congressional quarterly, 1983.
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