Kohler, H. (1992). Student workbook to accompany Microeconomics by Heinz Kohler. D.C. Heath.
Čikaški stil citiranja (17. izdanje)Kohler, Heinz. Student Workbook to Accompany Microeconomics by Heinz Kohler. Lexington, Mass: D.C. Heath, 1992.
MLA način citiranja (9. izdanje)Kohler, Heinz. Student Workbook to Accompany Microeconomics by Heinz Kohler. D.C. Heath, 1992.
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