Wurman R.S. (1989). Information Anxiety. Doubleday.
Lua i Stíl Chicago (17ú heag.)Wurman R.S. Information Anxiety. NEW YORK: Doubleday, 1989.
Lua MLA (9ú heag.)Wurman R.S. Information Anxiety. Doubleday, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.