No doubt your program will have you in one or more researching methods class in which you will learn about the different types of studies.  I used the book, Qualitative Inquiry and Research Design:  Choosing Among Five Approaches by John W. Creswell.  I found this book helpful and informative.  Once you have selected a study type, determine how it works with your proposed research topic.  Find similar examples of this study time from your university to gain insight into your university’s requirements and  preferences.  Following these steps will enable you to determine how your university wants each section presented as well as citing research in your literature review.  Be prepared they will change the rules on you in the middle of your work.  The best examples or the most recently published dissertations.