TY  - BOOK
AU  - Cutler,Ann
AU  - McShane,Rudolph Matas
TI  - The Trachtenberg speed system of basic mathematics
AV  - QA115 .C99
PY  - 1960///
CY  - Garden City, N.Y.
PB  - Doubleday
KW  - Trachtenberg, Jakow,
KW  - Arithmetic
ER  -