Presenting the Theatre Guild National Company of "Oklahoma!," a musical play based on "Green Grow the Lilacs" by Lynn Riggs, music by Richard Rodgers, book and lyrics by Oscar Hammerstein, 2d, production directed by Rouben Mamoulian, dances by Agnes de Mille, settings by Lemuel Ayers, costumes by Miles White, production supervised of Theresa Helburn & Lawrence Langner, production reproduced by Jerome Whyte, orchestra directed by Salvatore Dell'Isola, orchestrations by Russell Bennett, general musical director, Jay S. Blackton.