Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi
revised and update by Sandy Norman
Library Association Publishing, 1999
Buku Teks
Taylor, L. J. (Laurence John), author
Tamarisk Books, 1980
Buku Teks
Bruwelheide, Janis H., author
American Library Association, 1995
Buku Teks
Ziarnik, Natalie Reif, author
American Library Association, 2003
eBooks