Interchange Fourth Edition is a fully revised edition of Interchange, the world's most successful series for adult and young-adult learners of North American En

Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. The Interchan

Interchange Fourth Edition is a fully revised edition of Interchange, the world's most successful series for adult and young-adult learners of North American En

Interchange Fourth Edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. The Interchan

Four Corners is an integrated four-skills English course for adults and young adults. The interleaved Four Corners Teacher's Edition with Assessment Audio CD/CD