Dubert and Dubert 1978

Dubert, Raymond & Marjorie Dubert. 1978. Biangai lower levels of grammar. Ms.; Dubert, Raymond and Marjorie Dubert. 1973. Biangai phonemes. In Alan Healey (ed.), Phonologies of three languages of Papua New Guinea (Workpapers in Papua New Guinea Languages 2), 5-35. Ukarumpa: Summer Institute of Linguistics.

@misc{1171,
  author = {Dubert, Raymond and Dubert, Marjorie},
  title  = {Biangai lower levels of grammar. Ms.; Dubert, Raymond and Marjorie Dubert. 1973. Biangai phonemes. In Alan Healey (ed.), Phonologies of three languages of Papua New Guinea (Workpapers in Papua New Guinea Languages 2), 5-35. Ukarumpa: Summer Institute of Linguistics.},
  year   = {1978}
}