Surface properties of the moon, Venus, and small bodies from radar observations [microform] : final report : period covered 1 March 1994-31 August 1997 : grant no. NAGW 3985 / principal investigator, Donald B. Campbell ([NASA contractor report] ; NASA-112957)
Surface properties of the moon, Venus, and small bodies from radar observations [microform] : final report : period covered 1 March 1994-31 August 1997 : grant no. NAGW 3985 / principal investigator, Donald B. Campbell
原資料の出版事項: [Washington, DC ; Springfield, Va. : National Aeronautics and Space Administration : National Technical Information Service, distributor, 1997]