Cite

Martin, Spider. "Dallas County mounted posse waiting for civil rights marchers on the south side of the Edmund Pettus Bridge in Selma, Alabama, on Bloody Sunday.." Alabama. Department of Archives and History. 1965-03-07, http://digital.archives.alabama.gov/cdm/ref/collection/amg/id/36243.

Martin, Spider (1965-03-07). Dallas County mounted posse waiting for civil rights marchers on the south side of the Edmund Pettus Bridge in Selma, Alabama, on Bloody Sunday.. Retrieved from http://digital.archives.alabama.gov/cdm/ref/collection/amg/id/36243

Martin, Spider. "Dallas County mounted posse waiting for civil rights marchers on the south side of the Edmund Pettus Bridge in Selma, Alabama, on Bloody Sunday.." 1965-03-07. July 23, 2025. http://digital.archives.alabama.gov/cdm/ref/collection/amg/id/36243.