National Research Council (U.S.). Space Studies Board, United States. National Aeronautics and Space Administration, & ebrary, Inc. (2006). An assessment of balance in NASA's science programs. National Academies Press.
Dyfyniad Arddull ChicagoNational Research Council (U.S.). Space Studies Board, United States. National Aeronautics and Space Administration, and Inc ebrary. An Assessment of Balance in NASA's Science Programs. Washington, DC: National Academies Press, 2006.
Dyfyniad MLANational Research Council (U.S.). Space Studies Board, et al. An Assessment of Balance in NASA's Science Programs. National Academies Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.