Peterson, John A.
Theory of arithmetic
John Wiley & Sons, 1963
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Peterson, John A.
Theory of arithmetic
John Wiley & Sons, 1966
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McNelly, A.E.
Business arithmetic
Prentice-Hall, 1958
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Snyder, Llewellyn R.
Computational arithmetic
McGraw-Hill, 1968
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Arithmetic : a practical approach
by Gershon J. Shugar ... [and others]
Glencoe Press, 1977
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