Cyanotypes: Photography's Blue Period by Worcester Art Museum
Prussian Blue Wall Art for Sale
Brain Storms: The Race to Unlock the Mysteries of Parkinson's
Eleven Kinds of Blue: Werner's Pioneering 19th-Century
Prussian blue - Wikipedia
Weekly Book List, March 28, 2010
The History of Prussian Blue - Jackson's Art Blog
Precious Stones A Book of Reference for Jewelers - House of Dubhros
J.K. Rowling Harry Potter and the Philosopher's Stone. London
Blue - Wikipedia