Drury's Guide to best plays,

Eitemau Tebyg

• Index to plays in collections : an author and title index to plays appearing in collections published between 1900 and 1962 /
  gan: Ottemiller, John H. (John Henry), 1916-1968
  Cyhoeddwyd: (1964)
• Ottemiller's Index to plays in collections : an author and title index to plays appearing in collections published between 1900 and mid-1970 /
  gan: Ottemiller, John H. (John Henry), 1916-1968
  Cyhoeddwyd: (1971)
• Ottemiller's Index to plays in collections : an author and title index to plays appearing in collections published between 1900 and early 1975 /
  gan: Ottemiller, John H. (John Henry), 1916-1968
  Cyhoeddwyd: (1976)
• Play index.
• The drama scholars' index to plays and filmscripts: a guide to plays and filmscripts in selected anthologies, series, and periodicals.
  gan: Samples, Gordon
  Cyhoeddwyd: (1974)