Khushwant Singh; Author. (1991). A history of the Sikhs.
Chicago Style aipamenaKhushwant Singh; Author. A History of the Sikhs. New Delhi, Oxford University Press, 1991.
MLA aipamenaKhushwant Singh; Author. A History of the Sikhs. 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.