Toland, Norma R. Reference grammar of the Karo/Rawa language / Norma R. and Donald F. Toland. - Ukarumpa, Papua New Guinea : Summer Institute of Linguistics, 1991. - x, 220 p. ; 20 cm. - Data papers on Papua New Guinea languages ; v. 38 . Workpapers in Papua New Guinea languages. ISBN: 998005424 Subjects--Topical Terms: Papuan languages--Papua New Guinea.