ILGWU. Carl Proper papers #5780/150. Kheel Center for Labor-Management Documentation and Archives, Cornell University Library.
Cite Item Description
ILGWU. Carl Proper papers #5780/150. Kheel Center for Labor-Management Documentation and Archives, Cornell University Library. https://archives.library.cornell.edu/repositories/4/resources/10648 Accessed April 01, 2026.
