Elementary algebra, by Edward I. Edgerton and Perry A. Carpenter. Edgerton, Edward Ira, 1877-1947. Carpenter, Perry A. (Perry Amherst), 1881-, author. Algebra. QA152 .E255 512 19 EDE Boston, New York, [etc.] Allyn and Bacon [c1929] [c1929] 1929 Text xli, 498, 4 p. eng