| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1980 | 978-0-9507210-0-2 | Henry James Wood | Pelargoniums: A Complete Guide to Their Cultivation |
| 1983 | 978-0-9507210-1-9 | Henry James Wood | International Pelargoniums, or, Geraniums of the World |
| '' | 978-0-9507210-2-6 | '' | Pelargoniums, Geraniums and Their Societies |
| 1987 | 978-0-9507210-3-3 | '' | Pelargoniums; The Growers Guide to Geraniums and Pelargoniums, Especially the Golden-Leaved Varieties |