Browsing by Author Hagan, William Hart
Showing results 1 to 1 of 1
| Issue Date | Title | Author(s) |
|---|---|---|
| 1943 | The Photochemical and Thermal Bleaching of Visual Purple | Hagan, William Hart |
| Issue Date | Title | Author(s) |
|---|---|---|
| 1943 | The Photochemical and Thermal Bleaching of Visual Purple | Hagan, William Hart |