Harvard:
Khan, Y. xxxx, "The English-Malay letter-writer",
APA:
Khan, Y. (xxxx). The English-Malay letter-writer. .
Chicago:
Khan, Yusof. xxxx. "The English-Malay Letter-writer." .
MLA:
Khan, Yusof. "The English-Malay Letter-writer." (xxxx): .
Citation within the text:
(Khan xxxx)
Zotero:
Save reference in Zotero
BibTeX:
@article{khanxxxxenglish,
  title = {The English-Malay letter-writer},
  author = {KHAN, Yusof},
  year = {xxxx},
  keywords = {Malaysia;Language},
  BAS = {308531},
  source = {bas},
}