21.
 |  | Title: Interchange Workbook 3A (Interchange Third Edition) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521602238 Publisher: Cambridge University Press Pub. Date: 31 January, 2005
|
22.
 |  | Title: Interchange Student's Book 1 with Cd and Reviews in Backmatter (Interchange Third Edition) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521601746 Publisher: Cambridge University Press Pub. Date: 30 November, 2004
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23.
 |  | Title: Interchange Intro Lab guide: English for International Communication by Jack C. Richards, Susan Proctor, Jonathan Hull ISBN: 0521556082 Publisher: Cambridge University Press Pub. Date: 29 September, 1995 List Price: $18.50 Amazon.com Price: $18.50 |
24.
 |  | Title: Interchange Student's Book 1A with Audio CD (Interchange Third Edition) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521601754 Publisher: Cambridge University Press Pub. Date: 30 November, 2004
|
25.
 |  | Title: Interchange Student's Book 1B with Audio CD (Interchange Third Edition) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521601762 Publisher: Cambridge University Press Pub. Date: 30 November, 2004
|
26.
 |  | Title: Interchange: English for International Communcation (Workbook 1) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521359902 Publisher: Cambridge University Press Pub. Date: 30 March, 1990 List Price: $10.00 Amazon.com Price: $10.00 |
27.
 |  | Title: Changes 1 Student's book : English for International Communication (Changes) by Jack C. Richards, Jonathan Hull, Susan Proctor, David Haines ISBN: 0521447984 Publisher: Cambridge University Press Pub. Date: 07 April, 1994 List Price: $17.00 Amazon.com Price: $17.00 |
28.
 |  | Title: Changes 3 Student's book : English for International Communication (Changes) by Jack C. Richards, Jonathan Hull, Susan Proctor, David Haines ISBN: 0521449316 Publisher: Cambridge University Press Pub. Date: 16 November, 1995 List Price: $17.00 Amazon.com Price: $17.00 |
29.
 |  | Title: Interchange Student's Book 1 without Audio CD (Interchange Third Edition) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521601738 Publisher: Cambridge University Press Pub. Date: 30 September, 2004
|
30.
 |  | Title: New Interchange Student's CD 3A : English for International Communication (New Interchange English for International Communication) by Jack C. Richards, Jonathan Hull, Susan Proctor ISBN: 0521628334 Publisher: Cambridge University Press Pub. Date: 13 September, 1998 List Price: $16.00 Amazon.com Price: $16.00 |