Parkin, M. (1998). Economics (4th ed.). Addison-Wesley.
Tohutoru Kātū Chicago (17th ed.)Parkin, Michael. Economics. 4th ed. Reading, MA: Addison-Wesley, 1998.
Tohutoro MLA (9th ed.)Parkin, Michael. Economics. 4th ed. Addison-Wesley, 1998.
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