Powell, Ronald R., author
Greenwich Ablex Publishing Corporation , 1999
Buku Teks
Hafner, Arthur Wayne, author
American Library Association, 1989
Buku Teks
Simpson, I.S., author
Library Association, 1988
Buku Teks
Caplan, Priscillia, author
American Library Association,, 2003
Buku Teks
Sayers, W.C. Berwick, author
Deutsch, 1967
Buku Teks