edited by Kevin Garnett, Gillian Davies, Gwilym Harbottle
Sweet & Maxwell, 2005
Buku Referensi
Cornish, Graham P.
The Library Association, 1991
Buku Teks
Marett, Paul
Gower , 1991
Buku Teks
Cornish, G. P.
Cambridge University Press, 2015
eBooks
Jones, Hugh
Routledge, 1996
Buku Teks