Stanlake, G.F.
Introductory economics
Longman, 1987
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Samuelson, Paul A. (Paul Anthony), 1915-2009
Economics an introductory analysis
McGraw-Hill, 1985
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Samuelson, Paul A. (Paul Anthony), 1915-2009
Economics an introductory analysis
McGraw-Hill, 1958
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Marshal, Alfred
Priciples of economics An introductory volume
Macmilen and Co., 1930
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Samuelson, Paul A. (Paul Anthony), 1915-2009
Economics an introductory analysis
McGraw-Hill, 1964
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