A citations generator needed I am having a hard time creating citations for new literature.
I get a new work (either electronic or printed) and I want to incorporate its citation to my library by means of a citation file  (no matter if .bib, .ris, or whatever). And then I spend a lot of time in Internet looking for an appropriate citation file.

Could you tell me a website or a method to get a complete citation file for any work?
Thanks!

My known options are following (I tried to rank them based on completeness of entries):


WorldCat
SemanticScholar
GoogleScholar


Sadly, at those websites, I find quite incomplete citations, for example, ISBN, DOI, and publisher are often missing.
Web of Science allows you to extract (and even bulk-download) bibliographic metadata of scholarly works. (Select the papers, click on "Export...", choose "Other File Formats" and use "BibTeX" as File Format). 

Another option is JabRef, a reference manager which uses BibTeX and whose official browser extension "automatically identifies and extracts bibliographic information on websites and sends them to JabRef with one click."

I also find ZoteroBib useful. It worked well for me, and it is quick to use in browser.

Fur further options see Are there any tools to automatically search and download literature in a given .bib file?.