Van Lill, C. F. M. (1999). A model for user needs and information use studies in library and information services.
Chicago-referens (17:e uppl.)Van Lill, Cecilla Francina Martina. A Model for User Needs and Information Use Studies in Library and Information Services. 1999.
MLA-referens (8:e uppl.)Van Lill, Cecilla Francina Martina. A Model for User Needs and Information Use Studies in Library and Information Services. 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.