3.
4.
Practice Makes Perfect German Verb Tenses, 2nd Edition: With 200 Exercises + Free Flashcard App
by Astrid Henschel
ISBN: 9780071805094
List Price: $14.00
7.
German Verb Drills (German Edition)
by Henschel, Astrid, Walbruck,...
ISBN: 9780844220420
List Price: $6.95