Leypoldt, M. M. (1971). Learning is change. Judson Press.
Chicagoスタイル(17版)引用形式Leypoldt, Martha M. Learning Is Change. Valley Forge, Pa.: Judson Press, 1971.
MLA(8版)引用形式Leypoldt, Martha M. Learning Is Change. Judson Press, 1971.
警告: この引用は必ずしも正確ではありません.