The novel "Address Unknown" by Kathrine Kressmann Taylor has been adapted into various formats:
Film: It was adapted into a film in 1944 titled "Address Unknown".
Stage Productions: The story has been adapted for the stage in numerous locations, including France and Israel. The stage adaptations have been performed in almost 100 different locations worldwide.
Radio and Audio: There have also been adaptations for radio productions and audiobooks.
These adaptations reflect the enduring impact and relevance of the novel across different media.
For more detailed information, you can check the Wikipedia page or the article from The Guardian.