Grade Separation

Chicago citation style
Grade Separation. Retrieved from the Digital Public Library of America, http://collections.carli.illinois.edu/cdm/ref/collection/uic_ccfp/id/1724. (Accessed January 16, 2019.)
APA citation style
Grade Separation. Retrieved from the Digital Public Library of America, http://collections.carli.illinois.edu/cdm/ref/collection/uic_ccfp/id/1724
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.carli.illinois.edu/cdm/ref/collection/uic_ccfp/id/1724>.
Note: These citations are programmatically generated and may be incomplete.