Hafstrom, J. E. (1961). Basic concepts in modern mathematics. Addison-Wesley Pub. Co.
Chicagoスタイル(17版)引用形式Hafstrom, John Edward. Basic Concepts in Modern Mathematics. Reading, Mass.: Addison-Wesley Pub. Co, 1961.
MLA(8版)引用形式Hafstrom, John Edward. Basic Concepts in Modern Mathematics. Addison-Wesley Pub. Co, 1961.
警告: この引用は必ずしも正確ではありません.