Daugherty, Carroll R.
Principles of political economy / Carroll R. Daugherty and Marion R. Daugherty
Houghton Miffiln, 1950
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Mill, John Stuart
Principles of political economy with some of their applications to social philosophy / by John Stuart Mill
Colonial Press, 1898
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Case, Karl E.
Principles of economics
Pearson, Prentice Hall, 2009
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Mankiw, N. Gregory
Principles of economics
Harcout College, 1998
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Case, Karl E.
Principles of economics
Prentice-Hall, 2004
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