Lillard, P. P. (1972). Montessori, a modern approach. Schocken Books.
Chicagoスタイル(17版)引用形式Lillard, Paula Polk. Montessori, a Modern Approach. New York: Schocken Books, 1972.
MLA(9版)引用形式Lillard, Paula Polk. Montessori, a Modern Approach. Schocken Books, 1972.
警告: この引用は必ずしも正確ではありません.