Hi Jay,
Thanks for your question! Sources are to be cited in the text. This simply means that after any quotation or borrowed information that you use, you should put the author and the year in parentheses. For example:

"72% of young ex-prisoners were re-convicted within two years of their release, and just under half of them were sent back to prison" (Goldson, 2002).

You are not required to submit a bibliography.

Let me know if you have further questions!