Oklahoma! People Will Say We're In Love : a musical play based on the play "Green grow the lilacs" by Lynn Riggs - Rodgers, Richard, 1902-1979; Bennett, Robert Russell, 1894-1981; Hammerstein, Oscar, 1895-1960; Riggs, Lynn, 1899-1954 (London : Rodgers & Hammerstein Concert Library, 1987)