(1987). What is user friendly? Graduate School of Library and Information Science, Univ. of Illinois.
Chicago-Zitierstil (17. Ausg.)What Is User Friendly? Urbana-Champaign: Graduate School of Library and Information Science, Univ. of Illinois, 1987.
MLA-Zitierstil (9. Ausg.)What Is User Friendly? Graduate School of Library and Information Science, Univ. of Illinois, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.