| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Man Who Can Speak of Plants: Dr Thomas Coulter of Dundalk in Ireland, Mexico and Alta California | 978-0-9524847-2-1 (0-9524847-2-2) | 1994 | E. Charles Nelson |
| Man Who Can Speak of Plants: Dr.Thomas Coulter of Dundalk in Ireland, Mexico and Alta California | 978-0-9524847-0-7 (0-9524847-0-6) | 1994 | " |