| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Welsh Ferns, Clubmosses, Quillworts and Horsetails: Descriptive Handbook | 978-O-72OO-O21O-2 (O-72OO-O21O-9) | 1978 | A. E. Wade · Sydney Gerald Harrison · National Museum of Wales |
A. H. · H.A. · H.H. · Harlow A. Hyde