Pre-main sequence stars in the chamaeleon cloud and pre-main sequence stars in the Rho Ophiuchi cloud core [microform] : final technical report for NASA grant NAG 5-1678 / Eric D. Feigelson, principal investigator
原資料の出版事項: [Washington, DC ; Springfield, Va. : National Aeronautics and Space Administration : National Technical Information Service, distributor, 1993]