Bibliografia

• Alan Shepard i Deke Slyton Kierunek Księżyc''
• http://history.nasa.gov/ap11ann/introduction.htm
• http://spaceflight.nasa.gov/home/index.html
• http://www.ag.iastate.edu/centers/ftcsc/pages/educate.htm
• http://en.wikipedia.org/
• http://www.uranos.eu.org/poland/plkosm.html