| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Concise listing of information on the thermal areas and thermal springs of New Zealand | 978-0-477-06749-2 (0-477-06749-2) | 1984 |
| The Ngawha Geothermal Field. New and Updated Scientific Investigations. | 978-0-477-06771-3 (0-477-06771-9) | 1985 |