Template:Shelley & Whitehead, 1986
- Shelley, R.M. & Whitehead, D.R. 1986. A reconsideration of the milliped genus Sigmoria, with a revision of Deltotaria and an analysis of the genera in the tribe Apheloriini (Polydesmida: Xystodesmidae). Memoirs of the American Entomological Society 35: 1-223. BHL
