Pallmann, D. (2002). Network query language (NQL) /David Pallmann (ada CD). John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Pallmann, David. Network Query Language (NQL) /David Pallmann (ada CD). John Wiley & Sons, 2002.
Lua MLA (8ú heag.)Pallmann, David. Network Query Language (NQL) /David Pallmann (ada CD). John Wiley & Sons, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.