Sommerfeld, R. M. (1982). An introduction to taxation. Harcourt Brace.
シカゴスタイル引用形Sommerfeld, Ray M. An Introduction to Taxation. London: Harcourt Brace, 1982.
MLA引用形式Sommerfeld, Ray M. An Introduction to Taxation. Harcourt Brace, 1982.
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