Dewe, Ainslie
Aslib, 1980
Buku Referensi
Saez, Eileen Elliott de, author
Facet Pub, 2002
Buku Teks
Bopp, Richard E., author
Libraries Unlimited, 2001
Buku Teks
edited by Mary Feeney
Bowker Sour Limited, 1994
Buku Teks
HERTIS Information and Research 1991, 1991
Buku Teks