Roper, Robert G2022-07-262022-07-261961-06https://hdl.handle.net/11299/229831A Paper Presented to the Faculty of the Graduate School, University of Minnesota, A Requirement for the Degree Master of Arts (Plan B), by Robert G. Roper, June 1961.en-USUniversity of Minnesota DuluthPlan Bs (project-based master's degrees)Master of ArtsMaster of Arts in EducationDivision of Education and PsychologyScholarly Text or Essay