Jillian R. Griffiths, Jenny Craven, editor
Facet Publishing, 2009
Buku Teks
edited by Lorcan Dempsey, Derek Law and Ian Mowat
Library Association Publishing , 1995
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Shera, Jesse H.
Archon Books, 1965
Buku Referensi
edited by Peter Brophy; Shelagh Fisher; Zoe Clarke
Library Association Publishing, 2000
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Totterdell, Anne, author
Library Association Publishing, 2000
Buku Teks