If it's an epic poem, underline the title.
If it's brief, put the title in quotation marks.
Make a plan as follows: Do face-to-face interviews; identify a facility within a close travel distance. This would mean identifying one or more facilities within travel range. Make a decision about whether to interview inmates one-on-one or in a group setting. In fact, try to answer (in advance) all the questions that you would be likely to be asked by a representative of the facility, starting with "Who are you and what's this for?" Be prepared to answer questions about educational or commercial affiliation, what guarantees of confidentiality would be provided, what releases to expect interviewees to sign, etc. With those structural and design decisions made, begin with three avenues of inquiry: 1. Do Internet research on some studies already done with inmates and see how the researchers went about it. 2. Contact the warden of the institutions targeted and ask how to obtain permission to speak with inmates and how to set it up. 3. Attempt to make contact with social agencies that serve those populations, such as counseling centers and career advisers, and see if they could provide a channel or offer advice. Although none of these approaches might take you directly to the answer, they would provide leads, and by following those leads you can figure out how to go about making contact. There are also unofficial organizations, such as, for example, an "engaged Buddhism" Zen group or a community outreach branch of a church, that have visitation channels into jails and prisons. One of those might furnish the necessary contacts.
Your list of references in an MLA paper will be called "Works Cited," and that is the title that should go at the top of the page in the center. (This is not the same thing as the header, which is where your last name and the page number go.)
Remember, punctuation is important.
After the Works Cited, you would list each entry alphabetically by author. List the author (last name, comma, first name, period), title (book or main publication title, comma, article or short work title), publisher,publication city, and date (publisher, colon, city, comma, date), and page numbers of the borrowed material (i.e. 32-46).
Other things that you would need to include can be found at this site owl.English.purdue.edu/owl/resource/557/01/, depending on the *type* of entry... websites require the URL and don't always have page numbers, magazines require the magazine title and the article title, etc... each entry should have a hanging indent, meaning that the first line is flush with the left margin and the rest of the entry is indented five spaces. You do not have to do this by hand if you have a word processing program. They can do it automatically.
There is an example here ccc.commnet.edu/mla/sample.shtml if you are looking for an overall look. If you need details about how to enter a movie or a book with multiple authors, or other types of entries, use the link in the previous paragraph.
Also, the definative authority is the MLA Guide, which I believe is in its sixth edition. It can be found at most public and academic libraries, or can be purchased at any university/college bookstore, or most retail book dealers.
I think that it is always correct.