Meadow, Charles T., author
John Wiley & Sons, 1981
Buku Teks
Hartley, R.J., author
Bowker-Saur, 1990
Buku Teks
Tenopir, Carol, author
Libraries Unlimited, 1989
Buku Teks
Nicholas, David, author
Mansell Publishing, 1988
Buku Teks
written by the Staff of the Science and Technology Information Service
British Library , 1991
Buku Teks