Narr · Oxford University Press · Random House
| title | media type | ISBN-13 | year of publica- tion | |
|---|---|---|---|---|
| German Today: The Advanced Learner's Guide | Paperback | 978-0-19-815850-9 | 1987 | |
| Indo-European Philology | Unknown Binding | 978-0-09-095580-0 | 1969 | |
| Indo-European Philology | Paperback | 978-0-09-095581-7 | 1969 | |
| Panorama of Indo-European Languages | Hardcover | 978-0-09-111020-8 | 1972 | |
| Panorama of Indo-European Languages | Paperback | 978-0-09-111021-5 | 1972 | |
| Überblick über die indogermanischen Sprachen | Gebundene Ausgabe | 978-3-87808-100-5 | 1991 |