The Trachtenberg speed system of basic mathematics
By: Ann Cutler; translated and adapted by Ann Cutler and Rudolph McShane.
Contributors: Trachtenberg, Jakow, 1888-; McShane, Rudolph Matas.
Edition: 1st ed.
Publisher: Doubleday
Published: 1960
Place of publication: Garden City, N. Y
Number of pages: 270
Subjects: Arithmetic