TY  - BOOK
AU  - De Guzman, Danilo
TI  - Precalculus for senior high school
SN  - 9789719807940
AV  - QA 154.2 .D448 2017
PY  - 2017///
CY  - Quezon City
PB  - C & E Publishing, 
KW  - Library of Congress Subject Headings
KW  - Precalculus
N1  - Includes index
ER  -