nasa
21NASA CR — NASA Contractor Report Contributor: CASI …
22NASA EP — NASA Educational Publication Contributor: CASI …
23NASA HQ — NASA Headquarters Contributor: GSFC …
24NASA RP — NASA Reference Publication Contributor: CASI …
25NASA SP — NASA Special Publication Contributor: CASI …
26NASA TM — NASA Technical Memorandum Contributor: CASI …
27NASA TP — NASA Technical Publication Contributor: CASI …
28NASA TT — NASA Technical Translation Contributor: CASI …
29NASA — U.S. space agency, acronym of National Aeronautics and Space Administration, set up in 1958 …
30NASA — (National Aeronautics and Space Administration) n. American agency dealing with space travel and research of the universe …