TY  - BOOK
AU  - Mossotti,V.G.
ED  - U.S. Geological Survey Library.
TI  - The effect of selected cleaning techniques on Berkshire Lee marble: a scientific study at Philadelphia City Hall
T2  - Professional paper
PY  - 2002///
CY  - [Reston, Va.]
PB  - U.S. Dept of the Interior, U.S. Geological Survey
KW  - Building stones
KW  - Cleaning
KW  - Local
KW  - Marble
N1  - Title from disc label; Shipping list no.: 2003-0003-E
N2  - A scientific investigation of the effects of eight different cleaning techniques on the Berkshire Lee marble component of the facade of the East Center Pavilion at Philadelphia City Hall. The eight cleaning techniques evaluated were power wash, misting, gommage, combination, Armax, JOS, laser, and dry ice
ER  -