Author: Ralph Robert BentleyPublisher:
ISBN:
Category : Audio-visual education
Languages : en
Pages : 408
Book Description
An Experimental Evaluation of the Relative Effectiveness of Certain Audio-visual Aids in Vocational Agriculture PDF Download
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Author: Ralph Robert BentleyPublisher:
ISBN:
Category : Audio-visual education
Languages : en
Pages : 408
Book Description
Author: Ralph Robert Bentley
Author: Wesley Caspers
Author: Human Resources Research Organization
Author: 
Author: Ralph R. Bentley
Author: Deane A. Turner
Author: Pennsylvania State University. Instructional Film Research Program
Author: 
Author: 
Author: Pennsylvania State College. Instructional Film Research Program