(1968). Educational studies in mathematics. D. Reidel Pub. Co..
Chicagoスタイル(17版)引用形式Educational Studies in Mathematics. Dordrecht, Holland: D. Reidel Pub. Co., 1968.
MLA(9版)引用形式Educational Studies in Mathematics. D. Reidel Pub. Co., 1968.
警告: この引用は必ずしも正確ではありません.