Cite

Jefferson, Norvel. "FORTY BLOCKS: Norvel Jefferson." Chicago History Museum. 2016-03-26, http://collections.carli.illinois.edu/cdm/ref/collection/chm_oh/id/176.

Jefferson, Norvel (2016-03-26). FORTY BLOCKS: Norvel Jefferson. Retrieved from http://collections.carli.illinois.edu/cdm/ref/collection/chm_oh/id/176

Jefferson, Norvel. "FORTY BLOCKS: Norvel Jefferson." 2016-03-26. June 18, 2025. http://collections.carli.illinois.edu/cdm/ref/collection/chm_oh/id/176.