Harvard:
Luce, G.H. undated, "Rianglang lexicon", in Luce Collection, MS 6574-7, pp. 50a-55. National Library of Australia.
APA:
Luce, G.H. (undated). Rianglang lexicon. Luce Collection, MS 6574-7, 50a-55. National Library of Australia.
Chicago:
Luce, Gordon H. undated. "Rianglang Lexicon." In Luce Collection, MS 6574-7, 50a-55. National Library of Australia.
MLA:
Luce, Gordon H. "Rianglang Lexicon." Luce Collection, MS 6574-7. undated, 50a-55.
Citation within the text:
(Luce undated)
Zotero:
Save reference in Zotero
BibTeX:
@unpublished{luce-71.50a-55,
  author = {Luce, Gordon H.},
  title = {Rianglang lexicon},
  year = {undated},
  booktitle  = {Luce Collection, MS 6574-7},
  publisher = {National Library of Australia},
  permission = {1},
  folder = {71},
  pages = {50a-55},
  keywords = {lexicon},
  url = {http://purl.org/sealang/luce-71.50a-55.pdf}
  source = {sealang},
}