Hillman, C. B. (1995). Before the school bell rings. Phi Delta Kappa Educational Foundation.
Chicagoスタイル(17版)引用形式Hillman, Carol B. Before the School Bell Rings. Indiana: Phi Delta Kappa Educational Foundation, 1995.
MLA(9版)引用形式Hillman, Carol B. Before the School Bell Rings. Phi Delta Kappa Educational Foundation, 1995.
警告: この引用は必ずしも正確ではありません.