| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A New Zealand handbook of bulbs & perennials | 978-0-908877-02-7 (0-908877-02-1) | 1993 |
| An Illustrated Handbook of Bulbs and Perennials | 978-0-304-34536-6 (0-304-34536-9) | 1995 |
| Illustrated Handbook of Bulbs and Perennials | 978-0-304-34310-2 (0-304-34310-2) | 1993 |