| Author: | Parsons, Frances Theodora, 1861-1952 |
| Subject: | QK, Ferns -- United States -- Identification |
| Format: | Electronic text |
| Date issued: | 2013 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | How to Know the Ferns : A Guide to the Names, Haunts and Habitats of Our Common Ferns [electronic resource] / Frances Theodora Parsons |