TY  - BOOK
T1  - Prospects an advanced course teacher's book
A1  - Percil, John
A2  - Gray, Joanna
PP  - London
PB  - Penguin Books
YR  - 1988
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-1685523046125156954
OP  - 106
CN  - PE 1065 P48 1988
KW  - Language and languages : Study and teaching.
ER  -