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George Gearhart
Key to geometry
Key to Geometry - Books 1 thru 8
Key to Geometry, Book 2
Key to Geometry, Book 5
Key to Geometry, Book 6
A review and analysis of the use of geometric transformations in secondary mathematics
Key to Geometry, Book 3
Key to Geometry, Book 4
Key to Geometry, Book 7
Key to Geometry, Book 8
