NASA. Shuttle Space Kit: STS-93. http://www.shuttlepresskit.com/STS-93/scom.htm
Oberg, James. "Astronaut." World Book Online Reference Center. 2005. World Book, Inc. http://www.nasa.gov/worldbook/astronaut_worldbook.html
Petty, John. "Spacewalking." National Aeronautics and Space Administration. April 7, 2002. http://spaceflight.nasa.gov/shuttle/reference/faq/eva.html
Schmitt, Tony. "Index of spacewalks by manned space program." Feb. 1, 2007. http://pages.prodigy.net/pxkb94ars/Spacewalks/index.html
Vogt, Gregory. "Suited for spacewalking: a teacher's guide with activities for technology education, mathematics, and science." National Aeronautics and Space Administration. Washington, D.C.: Office of Human Resources and Education, 1998. http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Suited_for_Spacewalking_Educator_Guide.html
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