Hitchcock, H.R. (1960). "review: A Century of Minnesota Architecture by Donald R. Torbert". Journal of the Society of Architectural Historians19 (1): 39–40. doi:10.2307/987968. ISSN0037-9808.
Roberts, Matt T.„Asbestine“. Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology. 2007-yil 23-fevralda asl nusxadan arxivlangan. Qaraldi: 2009-yil 29-yanvar.
web.archive.org
Roberts, Matt T.„Asbestine“. Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology. 2007-yil 23-fevralda asl nusxadan arxivlangan. Qaraldi: 2009-yil 29-yanvar.
Chambers, Ephraim.„asbestine“. Cyclopaedia. 2009-yil 9-martda asl nusxadan arxivlangan. Qaraldi: 2009-yil 29-yanvar.
wisc.edu
digicoll.library.wisc.edu
Chambers, Ephraim.„asbestine“. Cyclopaedia. 2009-yil 9-martda asl nusxadan arxivlangan. Qaraldi: 2009-yil 29-yanvar.
worldcat.org
Hitchcock, H.R. (1960). "review: A Century of Minnesota Architecture by Donald R. Torbert". Journal of the Society of Architectural Historians19 (1): 39–40. doi:10.2307/987968. ISSN0037-9808.