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1
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QA43
.S2
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The contest problem book III : annual high school contests 1966 - 1972/compiled with solutions by Charles T. Salkind and James M. Earl
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Washington, D.C., [ United States ] : The Mathematical Association of America , 1973
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Salkind, Charles T
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23594
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2
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QA171
.G7
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Groups and their graphs/by Israel Grossman and Wilhelm Magnus; illustrated by George Buehler
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New York, [ United States ] : Random House , 1964
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Grossman, Israel
|
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47244
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3
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QA611
.C5
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First concepts of topology : The geometry of mappings of segments, curves, circles and disks/by W. G. Chinn and N. E. Steenrod; illustrated by George H. Buehler
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New York, [ United States ] : Random House Inc. , 1966
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Chinn, W. G.
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114514
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