Laycock n.d.

Laycock, Donald C. n.d. Notebook C5: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Yis, Yil, Karawa. Don Laycock (compiler); Don Laycock (researcher). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). oai:paradisec.org.au:DL2-005.

@misc{10102,
  author = {Laycock, Donald C.},
  title  = {Notebook C5: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Yis, Yil, Karawa. Don Laycock (compiler); Don Laycock (researcher). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). oai:paradisec.org.au:DL2-005.},
  year   = {n.d.}
}