National Association of Secondary-School Principals. (1966). Re-assessing human poetential. s.n.
Chicago Style (17. basım) AtıfNational Association of Secondary-School Principals. Re-assessing Human Poetential. [Washington]: s.n, 1966.
MLA (9th ed.) AtıfNational Association of Secondary-School Principals. Re-assessing Human Poetential. s.n, 1966.
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