de Kock, K. and Wolmarans, C. 2010. Distribution and habitats of Unio caffer Krauss, 1848 (Bivalvia: Unionoida: Unionidae) in South Africa based on the records in the database of the National Freshwater Snail Collection. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;. 29, 4 (Jan. 2010), 173-185. DOI:https://doi.org/10.4102/satnt.v29i4.21.