| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Photographic Acacia | 978-0-620-39858-9 (0-620-39858-2) | 2007 |
| S.A. acacias: Identification guide: 40 species, sub-species & varieties = S.A. acacias: identifikasiegids: 40 spesies, sub-spesies & variëteite | 978-0-620-18486-1 (0-620-18486-8) | 1994 |
| SA ficus: Identification guide for wild figs in S.A. = identifikasie gids vir wildevye in S.A | 978-0-620-19905-6 (0-620-19905-9) | 1996 |