"Folk music." . . "United States." . . . . "Popular music." . . . . . . . . . . . . . . . . . . . . . . . "Singers and songwriters collection"@en . . . . "Discs 1 and 2: pt. 1 Single song of freedom -- Discs 3 and 4: pt. 2 Blowin' in the wind -- Discs 5 and 6: pt.3 Reason to believe -- Discs 7 and 8: pt.4 Yesterday's gone."@en . . "The folk years a singers and songwriters collection"@en . "The folk years a singers and songwriters collection" . . . "The folk years A singers and songwriters collection"@en . . . . . "Compact discs." . . "1951 - 1970" . . "Folk-rock music." . . "Rock music." . . "Folk songs, English United States." . . "1961 - 1970" . . "Folk songs, English." . . "Popular music 1961-1970." . . "Folk songs." . .