The Relative Merits of Three Methods of Subtraction; An Experimental Comparison of the Decomposition Method of Subtraction with the Equal Additions Method and the Austrian Method
New York: AMS Press, 1972.
Reprint. Hardcover. Library stamps/marks/labels/pocket, otherwise slight wear. Crisp hardcover.; Facsimile reprint of 1938 edition. "The specific problem of this study was to determine whether there is any difference in efficiency between the methods of subtraction in whole numbers as used in this country." ; Columbia..... More