| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| New Guinea: Research from an Heterogeneous Island: Proceedings of the Biological Society of New Guinea Meeting at Wau Ecology Institute, 1993 | 978-9980-945-93-8 (9980-945-93-1) | 1993 |
| Plants of New Guinea and the Solomon Islands: Dictionary of the Genera and Families of Flowering Plants and Ferns | 978-9980-945-84-6 (9980-945-84-2) | 2012 |