| Type | Article |
| Authors(s) | Cobben, R.H. |
| Year | 1968a |
| Title | Evolutionary trends in Heteroptera. Part I. Eggs, achitecture of the shell, gross embryology and eclosion |
| Volume | 707 |
| Page(s) | 1-475 |
| Published in/Publisher | Agricultural Research Reports, Wageningen |
| Type | Article |
| Authors(s) | Cobben, R.H. |
| Year | 1968a |
| Title | Evolutionary trends in Heteroptera. Part I. Eggs, achitecture of the shell, gross embryology and eclosion |
| Volume | 707 |
| Page(s) | 1-475 |
| Published in/Publisher | Agricultural Research Reports, Wageningen |