BibTeX

@misc{Hutchisson1975,
  author       = {Hutchisson, Don},
  howpublished = {Unpublished manuscript, Summer Institute of Linguistics Papua New Guinea Branch},
  title        = {Sursurunga grammar},
  url          = {https://pnglanguages.sil.org/resources/archives/43876 https://www.sil.org/system/files/reapdata/13/49/71/134971524561858927069546329449158301812/Sursurunga_Grammar_Essentials.pdf},
  year         = {1975},
  sections     = {None}
}