Liebhafsky, Erwin Eugene 1922- Liebhafsky, E. E. (Erwin Eugene) 16773 2024-08-07 16:10:55 2022-01-27 16:57:07 naf author https://fraser.stlouisfed.org/author/erwin-eugene-liebhafsky-1922 https://fraser.stlouisfed.org/api/author/16773