Cohen, L., & Ehrlich, G. Structure of the real number system. Van Nostrand reinhold company.
シカゴスタイル引用形Cohen, Leon, , Gertrude Ehrlich. Structure of the Real Number System. New York: Van Nostrand reinhold company.
MLA引用形式Cohen, Leon, , Gertrude Ehrlich. Structure of the Real Number System. Van Nostrand reinhold company.
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