TY  - GEN
AU  - Alexander,L.G.
TI  -  Practice and progress: : an integrated course for pre-intermediate students 
T2  - New concept English
SN  - 582523303
AV  - PE1128.A2 
U1  - 428 
PY  - 1969///
CY  - London
PB  - Longmans, 
KW  - English language
KW  - Textbooks for foreign speakers
ER  -