From the University of North Carolina at Chapel Hill. This handout is from the Writing Center at the University. It is a great step by step guide to assist you in writing your literature review.
Denney, A. S., & Tewksbury, R. (2013). How to write a literature review. Journal of Criminal Justice Education 24(2), 218-235.
http://doi:dx.doi.org/10.1080/10511253.2012.730617