Tohutoro APA (7th ed.)
Kearl, J. (1993). Principles of Economics. D.C.Heath and Co..
Tohutoru Kātū Chicago (17th ed.)
Kearl, James. Principles of Economics. Massachusetts: D.C.Heath and Co., 1993.
Tohutoro MLA (9th ed.)
Kearl, James. Principles of Economics. D.C.Heath and Co., 1993.
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