| Author: | Christie, Agatha, 1890-1976 |
| Subject: | PR, Private investigators -- England -- Fiction, Detective and mystery stories, English, Murder -- Investigation -- Fiction, Poirot, Hercule (Fictitious character) -- Fiction, Mystery fiction, Secret societies -- Fiction |
| Format: | Electronic text |
| Date issued: | 2023 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Big Four [electronic resource] / Agatha Christie |