Não informado. (1928). American school and university. Educational Division of North American.
Chicagoスタイル(17版)引用形式Não informado. American School and University. Philadelphia, Pa: Educational Division of North American, 1928.
MLA(8版)引用形式Não informado. American School and University. Educational Division of North American, 1928.
警告: この引用は必ずしも正確ではありません.