Wiles Mensch Corporation, Dumbarton Oaks Utility Master Plan, Drainage Study Overeall. Dumbarton Oaks Archives, AR.AP.GG.SP.36.017
Wiles Mensch Corporation, Dumbarton Oaks Utility Master Plan, Drainage Study Overall. Archives, AR.AP.GG.Sp.36.017, Dumbarton Oaks Research Library and Collection.