UUser studiesUser studiesde Marcia J. BatesMateriasLibrary use studiesEdiciones (1)User studies (1971)s.n.] · inglésMás obras de Marcia J. BatesEEncyclopedia of library and information sciencesEncyclopedia of library and information sciencesEEncyclopedia of library and information sciencesEncyclopedia of library and information sciencesUUnderstanding information retrieval systems