Hi there! The content of Wikipedia is licensed under a CC BY-SA license which requires attribution (and sharing alike). This tool should provide attribution using templates made for this use, e.g. https://en.wikipedia.org/wiki/Template:Translated_page --Palosirkka (talk) 14:48, 31 December 2018 (UTC)
Topic on Talk:Content translation/V2
Users are required to order a en:Wikipedia:Requests for page importation, if not done by a bot.
The creators of the source article are credited in a link to the revision of the source article from which the translation was made, which is added automatically to the edit summary of the published version. This is compatible with the CC BY-SA license and with Wikimedia's Terms of Use, which require you as the re-user to give attribution "through hyperlink [...] to the page or pages that you are re-using".