TY  - BOOK
AU  - Spencer, Duncan Hugh.
TI  - English for proficiency
SN  - 019432155X (pbk) :
U1  - 372.6521 Sp334 
PY  - 1963///
CY  - London
PB  - Oxford University Press
KW  - English language
KW  - Textbooks for foreign speakers
N1  - Previous ed.: 1963
ER  -