White House stone carving : builders and restorers / Lee H. Helson.
Imprint
Washington D.C. : U.S. Dept. of the Interior, National Park Service, National Capital Region, White House Liaison : U.S. Dept. of the Interior, National Park Service, Cultural Resources, Preservation Assistance Division : For sale by the U.S. G.P.O., Supt. of Docs., 1992.