In addition, the bibliography should have at least two books directly related to your topic. (Two books: City Of Women Sex and Class In New York 1789-1860 by Christine Stansell and The Condition of the Working Class in England by Friedrich Engels)
Finally, you should include two other sources (newspaper articles, websites, oral history collections, etc.)
How does the previous literature prepare you for the argument? What elements are missing from the existing literature that you intend to add? What mistakes will you correct?
Some sources you can use that may help:
1. Fritz, H., & Cutchin, M. P. (2017). Changing neighborhoods and occupations: Experiences of older African-Americans in Detroit. Journal of Occupational Science, 24(2), 140-151. http://dx.doi.org/10.1080/14427591.2016.1269296
2. Goldmann, E., Aiello, A., Uddin, M., Delva, J., Koenen, K., Gant, L. M., & Galea, S. (2011). Pervasive exposure to violence and posttraumatic stress disorder in a predominantly African American urban community: The Detroit neighborhood health study. Journal of Traumatic Stress, 24(6), 747-751. http://dx.doi.org/10.1002/jts.20705
3. Geronimus, A. T., Pearson, J. A., Linnenbringer, E., Schulz, A. J., Reyes, A. G., Epel, E. S., Lin, J., & Blackburn, E. H. (2015). Race-ethnicity, poverty, urban stressors, and telomere length in a Detroit community-based sample. Journal of Health and Social Behavior, 56(2), 199-224. http://dx.doi.org/10.1177/0022146515582100