TY  - BOOK
AU  - Barrall,Irene
TI  - Powerbase :  : beginner : teacher's book 
SN  - 9780582487918
U1  - 428.24071 23
PY  - 2002///
CY  - Harlow :  
PB  - Pearson Education Limited,  
KW  - English language
KW  - Study and teaching
UR  - https://archive.org/details/powerbasebeginne0000evan
ER  -