S.P.Singh. (2008). Industrial Relations. A.I.T.B.S. Publishers.
Chicago Style aipamenaS.P.Singh. Industrial Relations. New Delhi: A.I.T.B.S. Publishers, 2008.
MLA aipamenaS.P.Singh. Industrial Relations. A.I.T.B.S. Publishers, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.