Ursus, N. R., & Launert, D. (2007). Nicholaus Reimers Ursus. Nova Kepleriana N.F., 9.
Chicago Style CitationUrsus, Nicolaus Reimarus, and Dieter Launert. "Nicholaus Reimers Ursus." Nova Kepleriana N.F., 9 2007.
MLA引文Ursus, Nicolaus Reimarus, and Dieter Launert. "Nicholaus Reimers Ursus." Nova Kepleriana N.F., 9 2007.
警告:这些引文格式不一定是100%准确.