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101   $aeng
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105   $aa---||||001yy
200 1 $aCircles$eA mathematical view$fD. Pedoe
210   $aNew York$cDover Publications, Inc.$dcopyr. 1979
215   $aVIII, 87 p.$cill.$d22 cm
225 2 $aDover Books Explaining Science
606 0 $aGeometria non euclidea
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700  1$aPEDOE,$bD.$047765
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