Não informado. (1967). Perspectives on Education. Columbia University, Teachers College.
Chicagoスタイル(17版)引用形式Não informado. Perspectives on Education. New York: Columbia University, Teachers College, 1967.
MLA(8版)引用形式Não informado. Perspectives on Education. Columbia University, Teachers College, 1967.
警告: この引用は必ずしも正確ではありません.