Tyler, R. W. (1976). Perspectives on American education: Reflections on the past ... challenges for the future. Science Research Associates.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTyler, Ralph W. Perspectives on American Education: Reflections on the Past ... Challenges for the Future. Chicago: Science Research Associates, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTyler, Ralph W. Perspectives on American Education: Reflections on the Past ... Challenges for the Future. Science Research Associates, 1976.
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