Laycock n.d.

Laycock, Donald C. n.d. Laycock, Don (n.d.) Notebook C7: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Seti, Seta, Urim, Minidien. Don Laycock (compiler); Don Laycock (researcher). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). oai:paradisec.org.au:DL2-007.

@misc{9764,
  author = {Laycock, Donald C.},
  title  = {Laycock, Don (n.d.) Notebook C7: Selected Research Papers of Don Laycock on Languages in Papua New Guinea: Seti, Seta, Urim, Minidien. Don Laycock (compiler); Don Laycock (researcher). n.d. Pacific And Regional Archive for Digital Sources in Endangered Cultures (PARADISEC). oai:paradisec.org.au:DL2-007.},
  year   = {n.d.}
}