Ve. Thillainayagam & Smith L C. (2001). Reference and information services: An introduction (3.). Libraries unlimited.
Chicago Style aipamenaVe. Thillainayagam and Smith L C. Reference and Information Services: An Introduction. 3. Coloeado: Libraries unlimited, 2001.
MLA aipamenaVe. Thillainayagam and Smith L C. Reference and Information Services: An Introduction. 3. Libraries unlimited, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.