Citation tools or "citation managers" collect and organize the data needed to cite to references, use in footnotes or end notes, and create bibliographies.
The data behind a citation is called "metadata" and includes author, title, publication, date, page, URLs, etc. Citation managers may also store PDFs and screenshots.
The data is stored in a database located that is either cloud-based or drive-based (local).
The tools recommended here include BlueBlook format, though all citations should still be checked.
Sign in with your institutional account (@maine.edu) for free access.
Zotero offers the greatest flexibility for working on the internet.
EndNote's compatible websites includes Google Scholar, arXiv.org, Amazon.com, ProQuest, EBSCO, and YouTube among many others.