| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| An Introduction to Old Irish | 978-0-87352-288-5 (0-87352-288-5) | 1975 | W.P. Lehmann |
| An introduction to Old Irish | 978-0-87352-289-2 (0-87352-289-3) | 1975 | W. P. Lehman |
M.-L. · M. Lehmann · P. Lehmann · P.M. · R. L · R. Lehmann · R. M. · R. P.