Template:Pendergrast, 1957
- Pendergrast, J.G. 1957. Studies on the reproductive organs of the Heteroptera with a consideration of their bearing on classification. The Transactions of the Royal Entomological Society of London 109(1): 1–63. DOI: 10.1111/j.1365-2311.1957.tb00133.x Online: part 1, part 2