1 literature reference for Julus unicolor C. L. Koch, 1847:

Author: Jeekel, Casimir Albrecht Willem
Year: 1971
Title: Nomenclator generum et familiarum Diplopodorum: A list of the genus and family-group names in the Class Diplopoda from the 10th edition of Linnaeus, 1758, to the end of 1957
Source: Monografieen van de Nederlandse Entomologische Vereniging, 5: 1-412: 1-412.