Harvard:
Purnell, H.C. 1971, "Major phonetic differences between Thai and some minority languages of Thailand", in Thai Phonetic conference, Bangkok.,
APA:
Purnell, H.C. (1971 ). Major phonetic differences between Thai and some minority languages of Thailand. Thai Phonetic conference, Bangkok., .
Chicago:
Purnell, Herbert C. 1971. "Major Phonetic Differences Between Thai and Some Minority Languages of Thailand." In Thai Phonetic conference, Bangkok., .
MLA:
Purnell, Herbert C. "Major Phonetic Differences Between Thai and Some Minority Languages of Thailand." Thai Phonetic conference, Bangkok.. 1971, .
Citation within the text:
(Purnell 1971)
Zotero:
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BibTeX:
@inproceedings{purnell1971major,
  author = {Purnell, Herbert C.},
  title = {Major phonetic differences between Thai and some minority languages of Thailand},
  booktitle = {Thai Phonetic conference, Bangkok.},
  year = {1971},
  x-huffmanId = {2808},
  source = {huffman-l-z},
}