Not only do you need to cite your sources, but you need to format them according to a particular style. Your instructor will often ask you to use a certain style in your paper. Here are links for more information about the styles commonly used in the health sciences:
"Academic dishonesty is prohibited in all programs of the University. Academic dishonesty includes but is not limited to: cheating, fabrication, plagiarism, and facilitating dishonesty." University of Massachusetts Amherst Academic Honesty Policy and Appeal Procedure
Here are some links for more information about avoiding academic dishonesty: