BibTeX

@book{BugenhagenandBugenhagen2007b,
  address   = {Ukarumpa},
  author    = {Bugenhagen, Salme & Robert D. Bugenhagen},
  publisher = {Summer Institute of Linguistics, Papua New Guinea Branch},
  title     = {Po Ta Ipiyooto Sua Mbula Uunu: Mbula-English Dictionary},
  url       = {https://archive.org/details/mbuladictionary},
  year      = {2007},
  sections  = {None}
}