Svenson 1944: The New World species of Azolla. – Amer. Fern J. 34: 69-84
| Title | The New World species of Azolla |
| Authorship | Svenson |
| Date published | 1944 |
| Volume | 34 |
| In journal | Amer. Fern J. |
| Pages | 69-84 |
| Title | The New World species of Azolla |
| Authorship | Svenson |
| Date published | 1944 |
| Volume | 34 |
| In journal | Amer. Fern J. |
| Pages | 69-84 |