The Trachtenberg speed systemof basic mathematics
By: translated and adapted by Ann Cutler and Rudolph McShane.
Contributors: Cutler, Ann.; McShane, Rudolph.
Publisher: Souvenir
Published: 1984
Place of publication: London
Language: eng
Number of pages: 270
Subjects: Arithmetic -- 1961-
Notes: Originally published, New York , Doubleday, 1960.

Translated from the German.