Harvard:
Luce, G.H. undated, "discussion of language families and history", in Luce Collection, MS 6574-7, pp. 023a-023b. National Library of Australia.
APA:
Luce, G.H. (undated). discussion of language families and history. Luce Collection, MS 6574-7, 023a-023b. National Library of Australia.
Chicago:
Luce, Gordon H. undated. "Discussion of Language Families and History." In Luce Collection, MS 6574-7, 023a-023b. National Library of Australia.
MLA:
Luce, Gordon H. "Discussion of Language Families and History." Luce Collection, MS 6574-7. undated, 023a-023b.
Citation within the text:
(Luce undated)
Zotero:
Save reference in Zotero
BibTeX:
@unpublished{luce-13.023a-023b,
  author = {Luce, Gordon H.},
  title = {discussion of language families and history},
  year = {undated},
  booktitle  = {Luce Collection, MS 6574-7},
  publisher = {National Library of Australia},
  permission = {1},
  folder = {13},
  pages = {023a-023b},
  keywords = {history},
  url = {http://purl.org/sealang/luce-13.023a-023b.pdf}
  source = {sealang},
}