Friends with an old book, Martino Galli
Middleton, M., Beasley, G., Savage, N., Franklin, J., Harris, E., Nash, P. W., Shell A., Baines C. and Beasley G. (1998). The Mark J. Millard Architectural Collection. Volume II: British Books. Seventeenth through Nineteenth Centuries. Washington: The National Gallery of Art, 108, 264, 268-269, 271.
https://www.nga.gov/content/dam/ngaweb/research/publications/pdfs/mark-j-millard-british-books.pdf
Mallgrave, H. F. (2017). ‘The Reception and Flowering of Classicism in the German Lands’. Renaissance and Baroque Architecture, Part II. Global Geographies and European Internationalism, The German Lands and Bohemia: 5.
https://onlinelibrary.wiley.com/doi/10.1002/9781118887226.wbcha026