Harvard:
Singh, R. xxxx, "Explorations in interlanguage",
APA:
Singh, R. (xxxx). Explorations in interlanguage. .
Chicago:
Singh, Rajendra. xxxx. "Explorations in Interlanguage." .
MLA:
Singh, Rajendra. "Explorations in Interlanguage." (xxxx): .
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(Singh xxxx)
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BibTeX:
@article{singhxxxxexplorations,
  title = {Explorations in interlanguage},
  author = {SINGH, Rajendra},
  year = {xxxx},
  address = {Series in Indian studies in theoretical and applied linguistics, 1.},
  keywords = {India;Language;Linguistics},
  x-extra = {Series in Indian studies in theoretical and applied linguistics, 1.},
  BAS = {564608},
  source = {bas},
}