Perkins, P. D., & Balfour-Browne, J. (1994). A contribution to the taxonomy of aquatic and humicolous beetles of the family Hydraenidae in southern Africa. Field Museum of Natural History.
Chicago Style (17th ed.) CitationPerkins, Philip D., and J. Balfour-Browne. A Contribution to the Taxonomy of Aquatic and Humicolous Beetles of the Family Hydraenidae in Southern Africa. Chicago, Ill: Field Museum of Natural History, 1994.
MLA (9th ed.) CitationPerkins, Philip D., and J. Balfour-Browne. A Contribution to the Taxonomy of Aquatic and Humicolous Beetles of the Family Hydraenidae in Southern Africa. Field Museum of Natural History, 1994.
Warning: These citations may not always be 100% accurate.