The Abacus and the Cross: The Story of the Pope Who Brought the Light of Science to the Dark Ages
epub
- Author: Pope Sylvester II, Brown Nancy Marie
- Language: English
- Year: 2010
- Author: Brown Nancy Marie, Guðríður þorbjarnardóttir
- Language: English
- Year: 2007
Ivory Vikings : the mystery of the most famous chessmen in the world and the woman who made them
epub
- Author: Brown Nancy Marie
- Language: English
- Year: 2015