BibTeX

@book{vandenBergandWiebe2019,
  address   = {Ukarumpa},
  author    = {van den Berg, René & Brent Wiebe},
  publisher = {SIL-PNG Academic Publications},
  series    = {Data Papers on Papua New Guinea Languages 63},
  title     = {Bola grammar sketch},
  year      = {2019},
  sections  = {None}
}