Utilization and function of audio-visual aids in small high schools of North Dakota

Anderson, Leonard E.2016-11-232016-11-231966https://scholarworks.montana.edu/handle/1/10714enAudio-visual materialsEducation, SecondaryTeaching--Aids and devicesRural schoolsUtilization and function of audio-visual aids in small high schools of North DakotaProfessional PaperCopyright 1966 by Leonard E. Anderson