National Research Council (U.S.) Committee on Space Shuttle Upgrades. (1999). Upgrading the space shuttle. National Academy Press.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.) Committee on Space Shuttle Upgrades. Upgrading the Space Shuttle. Washington, D.C: National Academy Press, 1999.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.) Committee on Space Shuttle Upgrades. Upgrading the Space Shuttle. National Academy Press, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.