» Catholic Encyclopedia: Adelard of Bath    Short article on this 12th-century thinker by William Turner.    http://www.newadvent.org/cathen/16001c.htm

» MacTutor History of Mathematics: Adelard of Bath    Biographical article with bibliography and links to related topics.    http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Adelard.html

» Medieval Sourcebook: Adelard of Bath    Excerpts from this thinker's Natural Questions, in which he argues that divine agency should not be invoked for those things which can be understood through reason.    http://www.fordham.edu/halsall/source/adelardbath1.html

» Wikipedia: Adelard of Bath    Concise article with links.    http://en.wikipedia.org/wiki/Adelard_of_Bath