A road map for the exploration of neighboring planetary systems [microform] / The ExNPS Team ; edited by C.A. Beichman ([NASA contractor report] ; NASA-CR-203568)
A road map for the exploration of neighboring planetary systems [microform] / The ExNPS Team ; edited by C.A. Beichman
原資料の出版事項: [Washington, DC ; Springfield, Va. : National Aeronautics and Space Administration : National Technical Information Service, distributor, 1996]