| Type | Article |
| Authors(s) | Den Doop, J.E.A. |
| Year | 1919 |
| Title | Gallobelicus nicotianae Koningsberger |
| Volume | 12 |
| Page(s) | 1-9 |
| Published in/Publisher | Bulletin van het Deli Proefstation, Medan, Sumatra |
| Type | Article |
| Authors(s) | Den Doop, J.E.A. |
| Year | 1919 |
| Title | Gallobelicus nicotianae Koningsberger |
| Volume | 12 |
| Page(s) | 1-9 |
| Published in/Publisher | Bulletin van het Deli Proefstation, Medan, Sumatra |