BibTeX

@misc{Bourkend,
  author       = {Bourke, R. Michael},
  howpublished = {Unpublished paper, http://www.icuc-iwmi.org/files/Publications/, accessed 5 October 2007},
  title        = {Indigenous fruit in Papua New Guinea},
  year         = {n.d.},
  sections     = {None}
}