TY  - BOOK
AU  - Senatin,Ruby B.
AU  - Centenera,Fe G.
TI  - Essentials of English: English 101 workbook-textbook 
SN  - 9710869760
PY  - 2009///
CY  - Mandaluyong City
PB  - National Book Store
KW  - English language
KW  - Study and teaching
ER  -