. . "Crosby, Stills & Nash." . . . . . . . . . . . . . . . . . . . . . . . . . . "Four decades of folk rock" . . . . . . . . . . . . . . . . . . . . . . . . . . . "Compact discs" . . . . . . . . . . . . . . . . . . . . . . . . . . . "The first and only collection that traces the influence of folk on rock down through four decades-from 1965 through the present." . . . . .