| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1985 | 978-1-899742-00-4 | R.T.F. Clifton | Geranium Family Species Check List: Part 4 |
| 1987 | 978-1-899742-19-6 | G.G. Guittonneau | Note on the Text of the Geraniologia of L'Heritier |
| 2004 | 978-1-899742-60-8 | R.T.F. Clifton | Pelargonium Species Checklist: Geraniaceae Knuth tribe 1 Geranieae, Pelargonium Pt. 4 (Geraniales Species Check List S.) |