Greenleaf, B. (1867). Elements of geometry and trigonometry: with practical applications. Improved electrotype ed. Boston: R.S. Davis & co., etc., etc..MLA Citation
Greenleaf, Benjamin, 1786-1864. Elements of Geometry And Trigonometry: With Practical Applications. Improved electrotype ed. Boston: R.S. Davis & co., etc., etc., 1867.
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