Nottingham J. Practical observations on conical cornea: and on the short sight, and other defects of vision connected with it. Londres: J. Churchill, 1854. Canadian archives.Arxivat 2015-03-19 a Wayback Machine.
web.archive.org
Nottingham J. Practical observations on conical cornea: and on the short sight, and other defects of vision connected with it. Londres: J. Churchill, 1854. Canadian archives.Arxivat 2015-03-19 a Wayback Machine.