Rules for writers, Tenth edition - Diana Hacker, Nancy Sommers 2021

Keep track of source materials
Managing information; taking notes responsibly
Research

Save a copy of each potential source as you conduct your research. Many database services will allow you to email, text, save, or print citations or full texts, and you can easily download, copy, or take screen shots of information from the web. It is always a good idea to use browser bookmarks and make a folder to save sources for your research assignment. (See the box on p. 57 for more advice on working with digital sources.)

Working with hard copies, screen shots, or files — as opposed to relying on memory or hastily written notes — lets you annotate each source as you read. You also reduce the chances of unintentional plagiarism since you will be able to compare your use of a source in your paper with the actual source, not just with your notes.