Cutler, Ann.
The Trachtenberg speed system of basic mathematics / translated and adapted by Ann Cutler and Rudolph McShane. - Westport, Conn. : Greenwood Press, c1960. - 270 p. ; 23 cm.
Reprint. Originally published: Garden City, N.Y. : Doubleday, 1960.
0313232008 (lib. bdg.)
81013439
Trachtenberg, Jakow, 1888-1953.
Arithmetic.
QA115 / .C99 1960
513/.92
The Trachtenberg speed system of basic mathematics / translated and adapted by Ann Cutler and Rudolph McShane. - Westport, Conn. : Greenwood Press, c1960. - 270 p. ; 23 cm.
Reprint. Originally published: Garden City, N.Y. : Doubleday, 1960.
0313232008 (lib. bdg.)
81013439
Trachtenberg, Jakow, 1888-1953.
Arithmetic.
QA115 / .C99 1960
513/.92