TY  - BOOK
TI  - Trachtenberg speed system of basic mathematics
SN  - 0313232008 (lib. bdg.)
PY  - 1962///
CY  - Westport, Conn.
PB  - Pan books Ltd., 
N1  - Reprint. Originally published: Garden City, N.Y. : Doubleday, 1960
ER  -