PROFICIENCY In english through our changing world : the national council of teachers of english

Published 1975

PROFICIENCY In english through world literature : the national council of teachers of english

Published 1986

Proficiency listening and speaking

by SCOTT-BARRETT
Published 1999

Proficiency testbuilder 2 : with key

by Harrison
Published 1998

Express proficiency

by DAINTY
Published 1995

New progress to proficiency : student's book

by Jones
Published 2001

Proficiency testbuilder

by Harrison
Published 1994

Cambridge proficiency English

by STONE
Published 1967

Progress to proficiency : student's book

by Jones
Published 1993

Proficiency testbuilder 2 : more tests that teach

by Harrison
Published 1998

New progress to proficiency [ 1-3

by Jones
Published 2002