HERRICK, S.M. Age and Correlation of the Clinchfield Sand in Georgia / By S.M. Herrick. -- Washington : United States Government Printing Office, 1972 - 17 p. -- (Geological Survey Bulletin ; 1354-E). Fecha real de registro 02-05-1972 Subjects--Topical Terms: EocenoEstratigrafía Universal Decimal Class. No.: 551.781.4