Kramer, B., & Wink, M. (2012). A critical revision of the churchill snoutfish: Genus Petrocephalus Marcusen, 1854 (Actinopterygii, Teleostei, Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species. Journal of natural history, 46(35/36), . https://doi.org/10.1080/00222933.2012.708452
Chicago Style (17th ed.) CitationKramer, Bernd, and Michael Wink. "A Critical Revision of the Churchill Snoutfish: Genus Petrocephalus Marcusen, 1854 (Actinopterygii, Teleostei, Mormyridae), from Southern and Eastern Africa, with the Recognition of Petrocephalus Tanensis, and the Description of Five New Species." Journal of Natural History 46, no. 35/36 (2012). https://doi.org/10.1080/00222933.2012.708452.
MLA (9th ed.) CitationKramer, Bernd, and Michael Wink. "A Critical Revision of the Churchill Snoutfish: Genus Petrocephalus Marcusen, 1854 (Actinopterygii, Teleostei, Mormyridae), from Southern and Eastern Africa, with the Recognition of Petrocephalus Tanensis, and the Description of Five New Species." Journal of Natural History, vol. 46, no. 35/36, 2012, https://doi.org/10.1080/00222933.2012.708452.