Elliott, Donald S., author
[American Library association, American Library association], 2007
eBooks
Dewey, Patrick R., author
American Library Association, 1990
Buku Referensi
Markless, Sharon, author
Facet Publishing, 2006
Buku Teks
Katz, William A., 1924-, author
Holt, Rinehart and Winston, 1979
Buku Teks
Doucett, Elisabeth, author
[American Management Association, ], 2008
eBooks