TY  - BOOK
AU  - Jones, Leo
TI  - Progress to proficiency (Students book)
SN  - 0521313422
U1  - 428.6 
PY  - 1986///
CY  - Great Britain
PB  - Pearson Education Asia Ple
KW  - English language
KW  - Textbooks for foreign speakers
N1  - 006076; B 071
ER  -