"The allopatric distribution of the cavernicolous beetles Ptomaphagus hubrichti and Ptomaphagus barri in Tennessee (Leiodidae; Catopinae)"
«"The allopatric distribution of the cavernicolous beetles Ptomaphagus hubrichti and Ptomaphagus barri in Tennessee (Leiodidae; Catopinae)"», ANsp, vol. 30, pp. 467-470., 1975.
,