| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Business English | 978-1-4000-2086-7 | 2005 | Maria Isabel Castro Cid · Enrique Montes · Merrick Walter | |
| Complete German: The Basics : Includes Coursebook, 4 Audio CDs, and Learner's Dictionary | 978-1-4000-2412-4 | 2008 | Walter Kleinmann | |
| German Verbs 101 | 978-1-59125-823-0 | 2007 | ||
| Going Beyond: The Crisis of Identity and Identity Models in Contemporary American, English and German Fiction | 978-3-484-45030-1 | 1993 | ||
| Speak in a Week German Week 2: See, Hear, Say & Learn | 978-1-59125-926-8 | 2007 | ||
| Speak in a Week German Week 3: See, Hear, Say & Learn | 978-1-59125-963-3 | 2008 | ||
| Speak in a Week German Week! 4: See, Hear, Say & Learn | 978-1-59125-964-0 | 2008 | ||
| Speak in a Week German Week 4: See, Hear, Say & Learn with CD : Lift-Flap Word and Picture Book | 978-1-59125-780-6 | 2008 | ||
| Speak in a Week German: Week One | 978-1-59125-820-9 | 2007 | ||
| The Cuban Missile Crisis | 978-1-60453-046-9 | 2008 | ||
Dr Helga Schier PH.D. · H.S. · Helga Ph D Schier · Helga Schier PhD · Helga Sciurie
De Gruyter · Penton Overseas Inc · Random House