If Milne Library has online access to your course readings, the best option is to link directly to the content. This avoids any copyright issues and lets the library know (through usage statistics) that you are using a particular journal or book.
Step 1: Determine if Milne has online access to your content, or if your article is freely available online.
Step 2: Find or create a direct link to the article/book chapter. This is a bit different in each database. Review the slidesh for guidance.