Citation, Documentation of Sources
Q. If I have used a machine translator (e.g., DeepL) in a paper, must I give credit to the machine translator? What if the translation needs to be edited?
A. Yes, you generally should give credit to a translator, whether human or machine. This could be done either in the acknowledgments or, for example, in a “Note on Translations” at the beginning of the book. But the easiest option is to footnote the first instance. For example,
1. Except where noted, this and other translations from the original Portuguese into English were generated by DeepL and edited by the author.
Remember also to credit yourself for any translations that you do without help (e.g., “my translation”; see CMOS 11.14).