Censorship : a world encyclopedia / editor, Derek Jones.

Published 2001

The encyclopedia of censorship.

by Green, Jonathon, 1948-
Published 2005

Free expression and censorship in America : an encyclopedia / Herbert N. Foerstel.

by Foerstel, Herbert N.
Published 1997

Censorship / consulting editors, Lawrence Amey [and others] ; project editor, R. Kent Rasmussen.

Published 1997