Laycock n.d.

Laycock, Donald C. n.d. Notebook D28: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Yerakai, Yinibu (Iteri), Biami (Piame) /Bikaru/Paka (pejorative, better: Setiali), Singsing data (flutes) (Kwoma). Don Laycock (compiler). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). oai:paradisec.org.au:DL2-039.

@misc{10096,
  author = {Laycock, Donald C.},
  title  = {Notebook D28: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Yerakai, Yinibu (Iteri), Biami (Piame) /Bikaru/Paka (pejorative, better: Setiali), Singsing data (flutes) (Kwoma). Don Laycock (compiler). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). oai:paradisec.org.au:DL2-039.},
  year   = {n.d.}
}