Toland, Norma R. and Toland, Donald F. 1991. Reference Grammar of the Karo/Rawa Language. (Data Papers on Papua New Guinea Languages, 38.) Ukarumpa: Summer Institute of Linguistics.
@book{sinnemakizeromarking-Toland1991,
address = {Ukarumpa},
author = {Toland, Norma R. and Toland, Donald F.},
publisher = {Summer Institute of Linguistics},
series = {Data Papers on Papua New Guinea Languages},
title = {Reference Grammar of the Karo/Rawa Language},
volume = {38},
year = {1991}
}