Harvard:
Mcfarland, C.D. xxxx, "Northern Philippine linguistic geography",
APA:
Mcfarland, C.D. (xxxx). Northern Philippine linguistic geography. .
Chicago:
Mcfarland, Curtis Daniel. xxxx. "Northern Philippine Linguistic Geography." .
MLA:
Mcfarland, Curtis Daniel. "Northern Philippine Linguistic Geography." (xxxx): .
Citation within the text:
(Mcfarland xxxx)
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BibTeX:
@article{mcfarlandxxxxnorthern,
  title = {Northern Philippine linguistic geography},
  author = {MCFARLAND, Curtis Daniel},
  year = {xxxx},
  address = {Monograph series, no.9},
  keywords = {Philippines;Language;Linguistics},
  x-extra = {Monograph series, no.9},
  BAS = {397322},
  source = {bas},
}