edited by G.W.A. Dummer, F.P. Thompson and J. Mackenzie Robertson
Pergamon Press, 1971
Buku Teks
McClure, Carma L.
Prentice-Hall, 1989
Buku Teks
Clayton, Marlene
Hants Ashgate, 1992
Buku Teks
Saffady, William
American Library Association , 1999
Buku Teks
Gillman, Peter
Aslib, 1984
Buku Teks