Can anyone tell me how much the Constellation Program would have cost if not canceled, including your source?

The Constallation Program was initiated by Bush and was later canceled by Obama, and it was a project of NASA. I need to know how much it would have cost to go through with the program, and for my essay, I need to know my source so I can cite it.Can anyone tell me how much the Constellation Program would have cost if not canceled, including your source?From: http://en.wikipedia.org/wiki/Constellati鈥?/a>



"When President George W. Bush established his new space exploration policy to return humans to the moon, NASA estimated the policy would cost $230 billion (in 2004 dollars) through 2025.[19] This figure includes the Commercial Crew and Cargo program, which is separate from the Constellation program. NASA has estimated that the Constellation program would cost over $97 billion (in 2008 dollars) through 2020, half of which would be for Ares I and Orion."



The wikipedia link has a reference linked to it that you should be able to use:

^ a b GAO Constellation Program Cost and Schedule Will Remain Uncertain Until a Sound Business Case Is Established. Government Accountability Office. (Report). Retrieved on February 3, 2010.



Here is the direct link to the government accountability office publication above from last summer: http://www.gao.gov/new.items/d09844.pdf

This is what you will want to reference and it should provide more useful information.