Columbia subject headings:
Civil rights--Library resources.
Human rights--Library resources.
Libraries--England--London.
Harvard subject headings:
Censorship--England--London--Library resources.
Censorship--Library resources--Directories.
Civil rights--England--London--Library resources.
Freedom of speech--England--London--Library resources.
Freedom of speech--Library resources--Directories.
Human rights--Library resources--Directories.
Library resources--England--London.
Princeton subject headings:
Censorship--Library resources--England--London--Directories.
Freedom of speech--Library resources--England--London--Directories.
Human rights--Library resources--England--London--Directories.