edited by Maria D.D. Collins, Patrick L. Carr
Taylor and Francis, 2008
Buku Teks
White, Andrew, author
Facet Publishing, 2006
Buku Teks
by Nancy McCormark and Catherine Cotter
Chando, 2013
eBooks
Blake, Monica, author
Aslib , 1999
Buku Teks
Stephen, Peter
Library Association Publishing, 1997
Buku Teks