Adult Education Association of the United States of America. (1977). Lifelong learning: The adult years. Adult Education Association of the United States of America.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAdult Education Association of the United States of America. Lifelong Learning: The Adult Years. Washington, D.C: Adult Education Association of the United States of America, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAdult Education Association of the United States of America. Lifelong Learning: The Adult Years. Adult Education Association of the United States of America, 1977.
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