International Express, Interactive Editions: Upper-Intermediate: Class Audio CDs

New Headway Beginner Class CD

Schritte International: Intensivtrainer MIT Audio-CD 5 & 6

International Express: Elementary: Class Audio CD

Get Started in Beginner's German Book/CD Pack: Teach Yourself (New Edition)

International Express, Interactive Editions: Elementary: Class Audio CDs

International Express: Pre-intermediate: Class Audio CD

Quick Change! Level Starter/Beginner with CD-ROM/Audio CD