Jack C. Richards

Interchange Third Edition Full Contact 1A

Charles Shields, Jack C. Richards, et al.

Interchange Workbook 2B

Jack C. Richards, Jonathan Hull, et al.

Four Corners Level 2 DVD

Jack C. Richards y David Bohlke

Four Corners Level 3 Classware

Jack C. Richards y David Bohlke

Interchange Third Edition Full Contact 2A

Jonathan Hull, Susan Proctor, et al.

Interchange Video Teacher's Guide 2

Jack C. Richards y Chuck Sandy

Interchange Class Audio CDs 3

Jonathan Hull, Susan Proctor, et al.