Não informado. (1968). Contemporary education. Indiana University, School of Education.
Chicagoスタイル(17版)引用形式Não informado. Contemporary Education. Terre Haute, Ind: Indiana University, School of Education, 1968.
MLA(8版)引用形式Não informado. Contemporary Education. Indiana University, School of Education, 1968.
警告: この引用は必ずしも正確ではありません.