14 DEC 2011 by ideonexus

 The Opus Majus of Roger Bacon

Books, Brochures, and Chapters>Book:  Bacon , Roger and Bridges , John Henry (2010-07-01), The Opus Majus of Roger Bacon, Cambridge Univ Pr, Retrieved on 2011-12-14
  • Source Material [books.google.com]
    • Folksonomies: biography autobiography
    Folksonomies: biography autobiography
     2  
    14 DEC 2011 by ideonexus

     The Letter of Roger Bacon Concerning the Marvelous Power ...

    Books, Brochures, and Chapters>Book:  Bacon , Roger (2010-09), The Letter of Roger Bacon Concerning the Marvelous Power of Art and Nature and the Nullity of Magic, Kessinger Publishing, Retrieved on 2011-12-14
  • Source Material [books.google.com]
    • Folksonomies: literary collections
    Folksonomies: literary collections
     1