APA-viite (7. p.)

Não informado. (1932). National Elementary Principal. National Association of Elementary School Principals.

Chicago-viite (17. p.)

Não informado. National Elementary Principal. Arlington, Va: National Association of Elementary School Principals, 1932.

MLA-viite (8. p.)

Não informado. National Elementary Principal. National Association of Elementary School Principals, 1932.

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