Whittaker, K. (1993). The Basics of library-based user services. Library Association.
Lua i Stíl Chicago (17ú heag.)Whittaker, Kenneth. The Basics of Library-based User Services. Library Association, 1993.
Lua MLA (8ú heag.)Whittaker, Kenneth. The Basics of Library-based User Services. Library Association, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.