Palmer, Allison R. 1927- Trilobites of the upper Cambrian Dunderberg Shale Eureka district, Nevada / by Allison R. Palmer. -- Washington : United States Government Printing Office, 1960 - P. 53-109, [8] h. de lam. -- (Geological Survey Professional Paper ; 334-C). Subjects--Topical Terms: NevadaTrilobites Universal Decimal Class. No.: 56(793)