Cambridge University Press · Timber Press, Incorporated
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|---|
| Hardy Rhododendron Species: A Guide to Identification: A Guide to Identification | Hardcover | 978-0-88192-723-8 (0-88192-723-6) | 2005 |
| Practical Plant Identification: Including a Key to Native and Cultivated Flowering Plants in North Temperate Regions | Paperback | 978-0-521-67877-3 (0-521-67877-3) | 2006 |
| Practical Plant Identification: Including a Key to Native and Cultivated Flowering Plants in North Temperate Regions | Hardcover | 978-0-521-86152-6 (0-521-86152-7) | 2006 |