McGee, E. S. Colorado Yule marble : building stone of the Lincoln Memorial / by Elaine S. McGee. - Washington, D.C. : U.S. Governmeny Printing Office, 1999. - vi, 43 p. : ill. ; 28 cm. - U.S. Geological Survey bulletin ; 2162 . Includes bibliographical references (p. 36-38) Subjects--Personal Names: Lincoln, Abraham, 1809-1865 --Monuments--Washington (D.C) Subjects--Topical Terms: Marble--Deterioration.--Washington (D.C.)Lincoln Memorial (Washington, D.C.)--Inspection.Marble--Colorado. LC Class. No.: QE75 TA428.M3 / .B9 no. 2162