Always save a copy of the complete citation, even if you have the entire e-book, e-journal article, or the full item in hard copy (print). Use the saved citations to create your footnotes, bibliography, or other references within your own work. Here's why:
Most article databases provide a way to email citations to yourself, so be sure to do it!
You may want to try a citation management tool to keep all of your sources and references organized. These are available free of charge:
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