Bartsch, P. (1910). "The west American mollusks of the genus Alaba". Proceedings of the United States National Museum. 39 (1781): 153–156. doi:10.5479/si.00963801.39-1781.153. This article incorporates text from this source, which is in the public domain.
gbif.org
"Alaba supralirata". Gbif. Global Biodiversity Information Facility. Retrieved 10 July 2024.