TY  - BOOK
AU  - Richards, J.C.
AU  - Long, M.N.
TI  - Breakthrough 1: a course in English communication practice: work book 
SN  - 0194253619
U1  - 420.7 
PY  - 1984///
CY  - Oxford
PB  - Oxford University Press
KW  - English Language
ER  -