Merriam, Charles W. 1905-1974 Silurian rugose corals of the Klamath mountains region, California / by Charles W. Merriam. -- Washington : United States Government Printing Office, 1972 - 50 p., [8] h. de lam. -- (Geological Survey Professional Paper ; 738). Subjects--Topical Terms: CaliforniaCorales fósiles Universal Decimal Class. No.: 563.6(794)