Before revision: Ludwig Heinrich Edler von Mises (; 29 September 1881 – 10 October 1973) was an Austrian–American Austrian School economist, historian, logician, and sociologist .
After revision: Ludwig Heinrich Edler von Mises (; 29 September 1881 – 10 October 1973) was an Austrian–American Austrian School economist, historian, logician, sociologist, and economist of the Austrian School .