TY  - BOOK
AU  - Tejero, Erlinda Galero
TI  - Doorways to english language proficiency : a self-improvement program
SN  - 971-08-6921-3
U1  - Fil 428.24 T23d 
CY  - Mandaluyong city 
KW  - English language - Grammar - Problems, exercises, etc
KW  - English language - Textbook for foreign speaker
ER  -