1. Single-concept sound films are reinforce learning skills Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Jacobs, C. (author) Format: Journal article Publication Date: 1975 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 50 Document Number: C00272 Journal Title: Agricultural Education Magazine Journal Title Details: 47(9): 207-208 Notes: Phase 1
