Krishna Kumar. (1991). Library manual (4th. rev. ed.). Vikas.
Chicago Style aipamenaKrishna Kumar. Library Manual. 4th. rev. ed. New Delhi: Vikas, 1991.
MLA aipamenaKrishna Kumar. Library Manual. 4th. rev. ed. Vikas, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.