@misc{1178,
  author = {Laycock, Donald C.},
  title  = {Austronesian languages: Sepik provinces. In: Wurm, Stephen A. (ed.), New Guinea area languages and language study Vol 2: Austronesian languages, 399-418. Canberra: Research School of Pacific and Asian Studies, Australian National University.},
  year   = {1976}
}