Petro, Andrew. "Effect of Gravity on Humans." NASA.gov. 1999. 4 Dec. 2003. <http://quest.arc.nasa.gov/mars/ask/humans-on-mars/Effect_of_Gravity_on_Humans.txt>
Living on Mars
Good Bye. "Candy Man Mars." July-August 1999. Accessed Oct. 18, 2004: http://www.goodbyemag.com/jul99/mars.html
Chocolate
Stephen, Andrew. "Bush's Announcement of a Mission to Mars." New Statesman. 2 Feb 2004. [4]http://www.findarticles.com/p/articles/mi_m0FQP/is_4673_133/ai_n6109896[17 Mar 2005]
Humans upon Mars
"Mars." The Columbia Encyclopedia. Sixth Edition. New York: Columbia University Press. 2001. [1]www.bartleby.com/65/. [17 Mar 2005].
Humans upon Mars
Gray, John. Men Are from Mars, Women Are from Venus: The Classic Guide to Understanding the Opposite Sex. Quill. 2004; 9, 10, 11, 13.
“Men are from Mars, Women are from Venusâ€
