Widnall, William Beck 1906-1983 Widnall, William B. 23818 2026-03-03 10:43:19 2024-11-20 13:44:02 naf viaf wikidata author https://fraser.stlouisfed.org/author/william-beck-widnall-1906-1983 https://fraser.stlouisfed.org/api/author/23818