APA aipamena

National Association of Secondary School Principals (U.S.). (2006). Principal's research review. National Association of Secondary School Principals.

Chicago Style aipamena

National Association of Secondary School Principals (U.S.). Principal's Research Review. Reston, VA: National Association of Secondary School Principals, 2006.

MLA aipamena

National Association of Secondary School Principals (U.S.). Principal's Research Review. National Association of Secondary School Principals, 2006.

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