Koul, O. N. (1991). Language style and linguistics. Bahri Pub.
Chicago Style aipamenaKoul, Omkar N. Language Style and Linguistics. New Delhi: Bahri Pub, 1991.
MLA aipamenaKoul, Omkar N. Language Style and Linguistics. Bahri Pub, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.