- ↑ Makhan, Dewanand / Sobti, R. C., and J. S. Yadav, eds. (2000) Hydrochidae (Coleoptera) from North America with description of Hydrochus pajnii sp. nov. and Hydrochus yadavi sp. nov., Some Aspects on the Insight of Insect Biology
- ↑ Short, A.E.Z., and F. Hebauer (2006) World Catalogue of Hydrophiloidea - additions and corrections, 1 (1999-2005) (Coleoptera), Koleopterologische Rundschau, vol. 76
- ↑ 3.0 3.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ ITIS: The Integrated Taxonomic Information System. Orrell T. (custodian), 26 Abril 2011