420.4 Ziegler, Arthur P. Jr., Leopold Adler, II, and Walter C. Kidney. Revolving Funds for Historic Preservation: A Manual of Practice. Pittsburgh, Pa.: Ober Park Associates, Inc., 1975. H3.1/No. 14

420.4 Ziegler, Arthur P. Jr., Leopold Adler, II, and Walter C. Kidney. Revolving Funds for Historic Preservation: A Manual of Practice. Pittsburgh, Pa.: Ober Park Associates, Inc., 1975. H3.1/No. 14, Box: 39. William J. Cohen papers, MSS 0468. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/192334 Accessed September 19, 2024.