Caldwell, I. S. (1959). The organizing principle in the curriculum of Christian education: Protestant trends.
Chicagoスタイル(17版)引用形式Caldwell, Irene Smith. The Organizing Principle in the Curriculum of Christian Education: Protestant Trends. 1959.
MLA(8版)引用形式Caldwell, Irene Smith. The Organizing Principle in the Curriculum of Christian Education: Protestant Trends. 1959.
警告: この引用は必ずしも正確ではありません.