Ufuldkommen konkurrence: Forskelle mellem versioner

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m sprogret
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Linje 5:
|author2=Steven M. Sheffrin
| title = Economics: Principles in action
| publisher = Pearson Prentice Hall
| date = 2003
| location = Upper Saddle River, New Jersey 07458
| pages = 153
| url = httphttps://www.pearsonschoolsavvas.com/index.cfm?locator=PSZ3R9PSZu4y&PMDbSiteId=2781&PMDbSolutionId=6724&PMDbSubSolutionId=&PMDbCategoryId=815&PMDbProgramIdPMDbSubCategoryId=1288124843&levelPMDbSubjectAreaId=&PMDbProgramId=423061
| doi =
| id =