A Grammar of Oscan and Umbrian - A complete version of Carl Darling Buck's 1904 comparative grammar of Oscan and Umbrian, now in the public domain. All special characters are reproduced correctly. - http://www.forumromanum.org/latin/buck_1.html
Umbrian - A short vocabulary of the Umbrian language. Part of the WordGumbo: Comparative Indo-European page. - http://www.wordgumbo.com/ie/cmp/umbr.htm
Oscan - A short vocabulary of the Oscan language. Part of the WordGumbo: Comparative Indo-European page. - http://www.wordgumbo.com/ie/cmp/osca.htm