Treasury of the theatre /

Eitemau Tebyg

• Theatre and drama in the making /
  gan: Gassner, John
  Cyhoeddwyd: (1964)
• Theatre at the crossroads Plays and playwrights of the mid-century American stage /
  gan: Gassner, John
  Cyhoeddwyd: (1966)
• Form and Idea in Modern Theatre
  gan: Gassner, John
  Cyhoeddwyd: (1956)
• Best plays of the American theatre. Series 2. /
  gan: Gassner, John
  Cyhoeddwyd: (1950)
• Twenty pest plays of the modern American theatre. /
  gan: Gassner, John
  Cyhoeddwyd: (1943)