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The School Edition. Euclid's Elements of Geometry, the First Six Books, by R. Potts. Corrected and Enlarged. Corrected and Improved [including Portions of Book 11,12]

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The School Edition. Euclid's Elements of Geometry, the First Six Books, by R. Potts. Corrected and Enlarged. Corrected and Improved [including Portions of Book 11,12]

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