"Youth." . . "USA." . . "1960 - 1980" . . "États-Unis" . . "Youth United States." . . "Soziale Situation." . . . . . . . . . . . . . . . "Youth and social change : Richard Flacks" . . . . . . "Qing nian yu she hui bian qian" . . . . . . . . . . "Youth and social change : (3. print.)" . . . "青年與社會變遷 = Youth and social change" . "Youth and social change" . . . . . . . . . . . . . "靑年與社會變遷" . . . "Jing nian yu she hui bian qian = Youth and social change" . . . . . . "青年与社会变迁" . . . . . . "Youth and social change" . "Youth and social change"@en . . "青年與社會變遷" . . . . . . . "Jing nian yu she hui bian qian" . . . . . . . "Student movements." . . "Mouvements étudiants États-Unis." . . "United States" . . "United States." . "Studentenbewegung." . . "Student movements United States." . . "Jugend." . . "Jongeren." . . "Social conditions." . . "Social conditions" . "Jeunesse États-Unis." . . "changement (sociologie) jeune Etats-Unis." . . . . "Since 1960" . . "Sociale verandering." . . "1900 - 1999" . . "Groepen (sociologie)" . .