ALA Citation Generator
"ALA Citation Generator - Reference & User Services Association (RUSA)", American Library Association, dynamically generated page.
http://www.ala.org/rusa/cite?query=node%252F2539&title=Making%2Bthe%2BMost%2BOut%2Bof%2BFree%2BHistorical%2BResources%2B-%2BReference%2B%26%2BUser%2BServices%2BAssociation%2B%28RUSA%29&url=http%253A%252F%252Fwww.ala.org%252Frusa%252Fmaking-most-out-free-historical-resources (Accessed November 29, 2023)