The following list includes the link to the MPA student paper guidelines, and a link to MSA Sample Projects, which can also be helpful in planning your Plan B paper.
For assistance with writing your paper, check out the Research and Writing Help guide.
You may also want to make use of the CMU Writing Center when you are further along with the project. The Writing Center will review your pages and offer advice on grammar, structure, APA style, etc.
CMU librarians are happy to help you with any research you need for your project. Your instructor is also a valuable resource and can best advise you on the requirements for the assignment.