National Research Council (U.S.). Committee on Conservation of Historic Stone Buildings and Monuments. Conservation of historic stone buildings and monuments: Report of the Committee on Conservation of Historic Stone Buildings and Monuments, National Materials Advisory Board, Commission on Engineering and Technical Systems, National Research Council.
استشهاد بنمط شيكاغوNational Research Council (U.S.). Committee on Conservation of Historic Stone Buildings and Monuments. Conservation of Historic Stone Buildings and Monuments: Report of the Committee On Conservation of Historic Stone Buildings and Monuments, National Materials Advisory Board, Commission On Engineering and Technical Systems, National Research Council.
MLA استشهادNational Research Council (U.S.). Committee on Conservation of Historic Stone Buildings and Monuments. Conservation of Historic Stone Buildings and Monuments: Report of the Committee On Conservation of Historic Stone Buildings and Monuments, National Materials Advisory Board, Commission On Engineering and Technical Systems, National Research Council.