(of)Say, T. (1821). Description of the Myriapoda of the United States. <em>Journal Acad. Nat. Sci. Philadelphia, 1st series.</em> 3: 1. page(s): 102 [details]
Sierwald, P.; Decker, P.; Spelda, J. (2025). MilliBase. Parajulus impressus (Say, 1821). Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=945477 on 2025-11-15
Marine Species Traits editorial board (2025). Marine Species Traits. Parajulus impressus (Say, 1821). Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=945477 on 2025-11-15
original description(of)Say, T. (1821). Description of the Myriapoda of the United States. <em>Journal Acad. Nat. Sci. Philadelphia, 1st series.</em> 3: 1. page(s): 102 [details]