How to know the economic plants; an illustrated key for identifying the plants used by man for good and in other personal ways, with some special essential facts about each plant.
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Dubuque, Iowa
W. C. Brown
1958.
|
| Pynciau: |