Michaelw3793

CS1 error on San Francisco plague of 1900–1904

Hello, I'm Qwerfjkl (bot). I have automatically detected that this edit performed by you, on the page San Francisco plague of 1900–1904, may have introduced referencing errors. They are as follows:

• A "bare URL and missing title" error. References show this error when they do not have a title. Please edit the article to add the appropriate title parameter to the reference. (Fix | Ask for help)

Please check this page and fix the errors highlighted. If you think this is a false positive, you can report it to my operator. Thanks, Qwerfjkl (bot) (talk) 04:56, 22 September 2023 (UTC)