edited by Kevin Garnett, Gillian Davies, Gwilym Harbottle
Sweet & Maxwell, 2005
Buku Referensi
Andrew Christie, Stephen Gare
Blackstone Press, 2001
Buku Teks
Owen, Lynette
Routledge, 1996
Buku Teks
Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi
revised and updated by Sandy Norman
Library Association Publishing, 1999
Buku Teks