TY  - BOOK
AU  - Jensen, Lacsamana Paz
TI  - Speed Math: Subtraction & Addition
SN  - 9789712717888
U1  - Res.(Fil.) 510 J54s 2004 
PY  - 2004///
CY  - Philippines
PB  - ANVIL PUBLISHING, INC.
KW  - Math
ER  -