Here are entered works on lines demarcating the jurisdictional borders between countries, regions, states, etc. in general. Works on lines demarcating the jurisdictional borders between specific regions, countries, etc., are entered under the name of the place with the subdivision Boundaries. Works on the lines demarcating the jurisdictional borders between two countries, etc., are entered under the name of each country with the subdivision Boundaries--[other country], e.g. United States--Boundaries--Mexico; Mexico--Boundaries--United States. Works on the land located on or near the boundaries between two countries, regions, states, etc. are entered under Borderlands. --subdivision Boundaries under names of countries, states, etc.; and subdivision Territorial questions under individual wars, e.g. World War, 1939-1945--Territorial questions
Here are entered works on the use of radio as a medium of communication in the political process. Works on the interrelations between radio and political institutions are entered under Radio broadcasting--Political aspects.
Here are entered works on the use of television as a medium of communication in the political process. Works on the interrelations between television and political institutions are entered under Television and politics.
For campaign literature related to United States elections during the period 1800-1948, this heading is authorized to be qualified by date and divided by names of political parties and by place, e.g. Campaign literature, 1840--Whig--Virginia. For campaign literature or works on campaign literature related to post-1948 United States elections or to elections in other countries during all periods, the heading may not be qualified by date and may be divided only by place.
