Head, June. 2011. A grammar of Umbu-Ungu. Ukarumpa: Ms., SIL. vii+249pp.
@misc{gHeadUmbuUngu, author = {Head, June}, howpublished = {Ukarumpa: Ms., SIL}, pages = {vii+249}, title = {A grammar of Umbu-Ungu}, year = {2011} }