| Original Language | English |
| First published | 1937-07-05 |
| Links | Official Website · https://en.wikipedia.org/wiki/Dumb_Witness |
| Notes | Dumb Witness is a detective novel by Agatha Christie, first published in the UK by the Collins Crime Club on 5 July 1937, and in the US by Dodd, Mead and Company later in the same year under the title of Poirot Loses a Client. The book features Belgian detective Hercule Poirot. |
Editions 3
Add Edition| Title | Publisher | Format | Language | Location | Dates | Impression | |
|---|---|---|---|---|---|---|---|
| Dumb Witness | Pocket book | English | London | 1971 | |||
 | Niemy Świadek | Wydanwictwo Dolnośląskie Sp. z o.o. | Paperback | Polish | Poland | 2004 | |
 | Dumb Witness | Harper | Paperback | English | New York | 2011 | 11 12 13 14 15 DIX/BVG 10 9 8 6 5 4 3 2 1 |