Correct citations perform 2 functions:
Whatever citation style you use, use it consistently: a journal articles will be cited the same in your list of sources, a web pages will be cited the same in your list of sources, etc.
These slides define plagiarism and academic dishonesty and the importance of proper citation of sources to avoid plagiarism.
One of the main ingredients in the ethical use of information is correctly citing sources. With EndNoteWeb you can create a database of citations, put them in folders, create a bibliography, insert citations as you type your paper, and much more.