Underground press publications 2,524 Presse parallèle 494 History 146 Radicalism 87 Histoire 62 Underground literature 61 Protest movements 59 more ... Vietnam War, 1961-1975 59 Politics and government 58 Presse parallèle 55 Periodicals 49 Political activity 48 Counterculture 46 Underground periodicals 45 History and criticism 35 Social movements 35 Publishers and publishing 32 Journalism 31 Students 31 Périodiques underground 30 Social conditions 26 Student movements 26 Socialism 25 Anarchism 24 Political aspects 24 Press and politics 23 Small presses 23 Soldiers 22 Social aspects 21 Feminism 20 less ...