Não informado. (1932). National Elementary Principal. National Association of Elementary School Principals.
Chicagoスタイル(17版)引用形式Não informado. National Elementary Principal. Arlington, Va: National Association of Elementary School Principals, 1932.
MLA(8版)引用形式Não informado. National Elementary Principal. National Association of Elementary School Principals, 1932.
警告: この引用は必ずしも正確ではありません.