APA-viite

Ve. Thillainayagam & Smith L C. (2001). Reference and information services: An introduction (3.). Libraries unlimited.

Chicago-tyylinen lähdeviittaus

Ve. Thillainayagam ja Smith L C. Reference and Information Services: An Introduction. 3. Coloeado: Libraries unlimited, 2001.

MLA-viite

Ve. Thillainayagam ja Smith L C. Reference and Information Services: An Introduction. 3. Libraries unlimited, 2001.