Sichel, W. (1977). Basic economic concepts: Microeconomics. Chicago: Rand McNally College Publishing Company.
Trích dẫn kiểu ChicagoSichel, Werner. Basic Economic Concepts: Microeconomics. Chicago: Rand McNally College Publishing Company, 1977.
MLA CitationSichel, Werner. Basic Economic Concepts: Microeconomics. Chicago: Rand McNally College Publishing Company, 1977.
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