New guide to letter writing /

Eitemau Tebyg

• Way to write /
  gan: Flesch, Rudolf
• Art of readable writing /
  gan: Flesch, Rudolf .
  Cyhoeddwyd: (1949)
• The Art of Readable Writing
  gan: Flesch, Rudolf
  Cyhoeddwyd: (1949)
• How to write, speak and think more effectively. /
  gan: Flesch, Rudolf
  Cyhoeddwyd: (1960)
• The art of playing talk:how to say and write what you mean in English that people understand /
  gan: Flesch, Rudolf
  Cyhoeddwyd: (1985)