Laycock n.d.

Laycock, Donald C. n.d. Notebook D6: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Kwanga=Seim, Southern Arapesh (Abu'), Samo (Bero), Banaro, Wiyaw (Haruai).ÊDon Laycock (compiler). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). paradisec.org.au/repository/DL2/items/017.

@misc{8507,
  author = {Laycock, Donald C.},
  title  = {Notebook D6: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Kwanga=Seim, Southern Arapesh (Abu'), Samo (Bero), Banaro, Wiyaw (Haruai).ÊDon Laycock (compiler). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). paradisec.org.au/repository/DL2/items/017.},
  year   = {n.d.}
}