P90-P96- general communication and mass media
PN4699-5650 -journalism
PN4735-4748- freedom of the press, government and the press
PN4840-5648- by region or country
HE8690-HE8701 and PN1990-1992.92 - radio and television broadcasting
HD59 and HM1221 -public relations
HM1206-1236- Media and Society, Propaganda, Public Opinion
TR820- Photojournalism
