The case of the good employer.

Eitemau Tebyg

• The case of the deadly diamonds.
  gan: Bush, Christopher, 1885-
  Cyhoeddwyd: (1967)
• The case of the prodigal daughter.
  gan: Bush, Christopher, 1885-
  Cyhoeddwyd: (1968)
• The case of the constant suicides /
  gan: Carr, John Dickson, 1906-1977
  Cyhoeddwyd: (1977)
• Panic in box C.
  gan: Carr, John Dickson, 1906-1977
  Cyhoeddwyd: (1966)
• Hooky and the crock of gold /
  gan: Meynell, Laurence, 1899-
  Cyhoeddwyd: (1975)