King, Ivan
Public Libraries Group of the Library Association, [1989]
Buku Referensi
Usherwood, Bob
Library Association, 1993
Buku Teks
McMenemy, David
Facet, 2009
Buku Teks
Eskridge, William N.
St. Paul Minn, 1988
Buku Teks
McColvin, Lionel R.
UNESCO , 1986
Buku Teks