Sources for Venus:

Grinspoon, David Harry. Venus Revealed. New York; Reading, Massachusetts; 
Menlo Park, California; Don Mills, Ontario; Harlow, England: Addison-Wesley 
Publishing Company, Inc., 1997.

Head, James W. "Venus [Planet]" World Book Multimedia Encyclopedia. Chicago: 
World Book Inc., 1997.

McManus, Jason, Ed. The Near Planets. Richmond, Virginia, Time-Life Books Inc, 
1989.

Robinson, Cordula. "Magellan Reveals Venus," Astronomy. Febuary 1995.

Williams, Dr. David R., "Venus Fact Sheet," Planetary Fact Sheets. Online. 14 
July 2000. http://nsssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html

Photo Credits for Venus:

Venus (Cloud cover): Ultraviolet picture of Venus seen from the outside with 
clouds swirling, as seen by the Pioneer Venus Orbiter taken 26 Feb 1979. 
(pvo_uv_790226.jpg) Courtesy of NASA and NSSDC. 
http://nssdc.gsfc.nasa.gov/image/planetary/venus/pvo_uv_790226.jpg

Venus (Cloud cover 2): Ultraviolet image of Venus' clouds as seen by the 
Pioneer Venus Orbiter (Feb. 5, 1979). (pvo_uv_790205.jpg) Courtesy of NASA 
and NSSDC. http://nssdc.gsfc.nasa.gov/image/planetary/venus/pvo_uv_790205.jpg 

Venus: Global view of Venus. Courtesy of NSSDC and NASA At: 
http://nssdc.gsfc.nasa.gov/image/planetary/venus/venusglobe.jpg 

Venus Ground seen from Venera 13: (actual picture with metal thing in 
the bottom) Picture of the surface of Venus from the Russian Venera 13, 
on the right side of the craft. 
http://nssdc.gsfc.nasa.gov/image/planetary/venus/venera13-right.jpg

Magellan: mgn_deploy.jpg The Magellan being deployed off of the Atlantis 
flight during the STS30. NASA photo number: P_3425BC. Courtesy of NASA/NSSDC.

Pioneer Venus Orbiter: (pv_orbiter.jpg) Artist's conception of Pioneer Venus 
Orbiter. Courtesy of NSSDC/NASA. 

Mariner 2: (mariner2.gif) Artists conception of Mariner 2. Courtesy of 
NASA/NSSDC.

Gula Mons: Computer generated surface view of Gula Mons. For this image, 
we also have a special treat. Because the vertical scale on these images is 
so exaggerated (a factor of 22.5, remember), we thought you might want to see 
what one of them would look like with a more realistic vertical scale.  
Courtesy of NASA/NSSDC. Catalog number: P-38721. 
http://nssdc.gsfc.nasa.gov/image/planetary/venus/mgn_gula_mons.jpg