| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Plants of the Simen: A flora of the Simen Mountains and surroundings, northern Ethiopia | 978-9O-72619-65-5 (9O-72619-65-X) | 2005 | Sileshi Nemomissa · Elmar Robbrecht |
C.P. · C. Richard (ed). Puff · C. Richard Puff · Christian Puff