National Association of Secondary-School Principals. (1966). Re-assessing human poetential. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Association of Secondary-School Principals. Re-assessing Human Poetential. [Washington]: s.n, 1966.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Association of Secondary-School Principals. Re-assessing Human Poetential. s.n, 1966.
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