TY  - BOOK
AU  -  Brueckner, Leo J.
AU  - Grossnickle, Foster E. 
AU  - Merton, Elda L. 
TI  - The new Knowing about Number: Leo J. Brueckner, Foster E. Grossnickle and Elda L. Merton
U1  - 511 
PY  - 1959///
CY  - Philadelphia
PB  - The John C. Winston Company
KW  - Arithmatic
ER  -