Reference and information services in the 21st century an introduction.

Detalhes bibliográficos
Autor principal:	Cassell, Kay Ann
Formato:	Livro
Idioma:	inglês
Publicado em:	New York Neal-Schuman Publishers 2006.
Assuntos:	Reference services (Libraries) Electronic reference services (Libraries) Reference books > Bibliography. Electronic reference sources > Directories.