01725oam 2200529 450 991071655030332120210623150046.0(CKB)5470000002522653(OCoLC)23027258(OCoLC)760932710(EXLCZ)99547000000252265319910129j197209 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierComparison of advanced propulsion concepts for deep space exploration /by W.E. MoeckelWashington, D.C. :National Aeronautics and Space Administration,September 1972.1 online resource (35 pages) illustrationsNASA/TN ;D-6968"September 1972."Includes bibliographical references (pages 34-35).Aerospace vehiclesnasatSpace missionsnasatSpace vehiclesPropulsion systemsSpace vehiclesPropulsion systemsfastAerospace vehicles.Space missions.Space vehiclesPropulsion systems.Space vehiclesPropulsion systems.Moeckel W. E(Wolfgang E.),1407626United States.National Aeronautics and Space Administration,Lewis Research Center.ABCABCAD#OCLCEOCLCQOCLCFOCLCQOCLCOOCLCQGPOBOOK9910716550303321Comparison of advanced propulsion concepts for deep space exploration3514141UNINA