National Association of Secondary School Principals (U.S.). (1993). The high school magazine. National Association of Secondary School Principals.
Citace podle Chicago (17th ed.)National Association of Secondary School Principals (U.S.). The High School Magazine. Reston, Va: National Association of Secondary School Principals, 1993.
Citace podle MLA (9th ed.)National Association of Secondary School Principals (U.S.). The High School Magazine. National Association of Secondary School Principals, 1993.
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