| Authors(s) | Speyer, E.R. |
| Year | 1939 |
| Title | 2. Leaf-miners of Glasshouse Plants. Annual Report of the Experiment Station Cheshunt 24 (1938): 67-73. |
| Authors(s) | Speyer, E.R. |
| Year | 1939 |
| Title | 2. Leaf-miners of Glasshouse Plants. Annual Report of the Experiment Station Cheshunt 24 (1938): 67-73. |