TY  - BOOK
AU  - Crisostomo,Ricardo M.
AU  - de Sagun,Priscila
AU  - Padua,Alicia
TI  - Our world of math 7 / 
T2  - Developmental math K to 12 series 7. 
SN  - 9789710729784
U1  - 510 
PY  - 2013///
CY  - Quezon  City, Philippines
PB  - Vibal Publishing House, Inc., 
KW  - Math
KW  - Mathematics for secondary education.
N1  - includes index and bibliography.
ER  -