Most of the library databases will provide a citation for you. You can either email the information to yourself or grab it as you're doing your research. However you save them, these citations need to be double checked by you to ensure they are following the correct citation guidelines.
If you use the folder option make sure you get the information before you leave the library database - the folders are temporary.
Make an appointment with a Librarian or a Writing Tutor.
Researching, writing and citing take time so creating a timeline can be helpful to stay on track. If you allow yourself enough time, you will be less likely to unintentionally plagiarize. And remember, it's still plagiarism even when unintentional.
When in doubt, cite your source!
Image of student by Jan Vasek on Pixabay CC0
When writing an academic paper, you must acknowledge all the resources (oral, print or web) that you used in your research. Not only does this allow your instructor to locate the sources you mention, it prevents you from being accused of plagiarism. In most instances, plagiarism is unintentional; it can be confusing to know what to cite. In general, it is better to be safe than sorry.