"Observational search for cometary aging processes" [microform] : final technical report : grant no. NAGW-1897 : November 1, 1989 to April 30, 1997 / submitted by Karen J. Meech, principal investigator ([NASA contractor report] ; NASA/CR 207819)
"Observational search for cometary aging processes" [microform] : final technical report : grant no. NAGW-1897 : November 1, 1989 to April 30, 1997 / submitted by Karen J. Meech, principal investigator
原資料の出版事項: [Honolulu, Hawaii] ; [Washington, DC ; Springfield, Va. : University of Hawaii : National Aeronautics and Space Administration : National Technical Information Service, distributor, 1997]