TY  - BOOK
AU  - Sebastian, Evelyn L.
TI  - English proficiency instruction 1
SN  - 971-584-469-3
AV  - FIL PE 1130.5 
CY  - Quezon City
KW  - English language -- Textbook for foreign speakers -- Filipinio.
KW  - English language -- Grammar -- Problems, exercises, etc
N1  - Includes bibliographical references
ER  -