The adult only joke book.

Eitemau Tebyg

• A treasury of laughter : consisting of humorous stories, poems, essays, tall tales, jokes, boners, epigrams, memorable quips, and devastating crushers /
  Cyhoeddwyd: (1946)
• The greatest joke book ever /
  gan: Greene, Mel
  Cyhoeddwyd: (1999)
• Khushwant Singh's joke book /
  gan: Singh, Khushwant
  Cyhoeddwyd: (1987)
• The Penguin dictionary of jokes, wisecracks, quips, and quotes /
  Cyhoeddwyd: (1994)
• The Guinness dictionary of jokes /
  gan: Rees, Nigel, 1944-
  Cyhoeddwyd: (1995)