These are the notes taken by Minsky in Spring, 1942, when he was an undergraduate at the University of Chicago. The notes are from the class, "“Economics 332: Business Cycle Theory" taught by Oscar R. Lange. The notes were taken in an Accopress Binder notebook.
Minsky, Hyman P. Ph.D., "Notes taken by Minsky on Oscar Lange's class "Business Cycle Theory"" (1942). Hyman P. Minsky Archive. 482.