Sources for Uranus:

Seymour, Simon. Uranus. William Morrow and co. NY, 1987.

Branley, Franklin. Uranus-the Seventh planet. Thomas Crowell, NY 1988.

Shephard, Donna. Uranus. Franklin Watt, NY, 1994

McNab, David, and James Younger. The Planets. New Haven and London: 
Yale University Press, 1999.

"Uranus Fact Sheet," National Space Science Data Center. Online. 
17 February 2000. 
http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranusfact.html 

Photo Credits for Uranus:

Uranus: From double picture with one false colored image and one true 
colored picture. Courtesy of NSSDC and NASA. NASA PR P-29478. 
http://nssdc.gsfc.nasa.gov/image/planetary/uranus/uranus_true_and_false.jpg 

Uranus art: (AC77-0359.jpg) A photo of the original art work of Rick 
Sternbach; Date: March 29, 1977. Depicting Uranus and its rings. Courtesy 
of Ames Research Center and NASA. 
http://ails.arc.nasa.gov/Images/Astrobiology/jpegs/AC77-0359_a.jpeg 

Uranus atmosphere: (PIA01535.jpg) Processing brings out the atmosphere of 
Uranus. Taken by the Voyager 2 spacecraft on Jan. 27, 1986. Courtesy of 
JPL/NASA. 

Uranus' Moons: (PIA01975.jpg) The moons family portrait. The five largest 
moons of Uranus. Made from images sent back by the Voyager 2. 
Taken on Jan. 20, 1986. Courtesy of JPL/NASA.