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Audio‐visual aidsOberle, Marcella; Dobkin, Milton; Mayhew, Jean B.; Salisbury, Lee H.; Burton, Vivian E.; Krantz, Henrietta C.; Chapman, James L.; Smith, Ralph L.; Clay, James H.; Nielson, Margaret A.; Haushalter, William R.; Ritter, Charles C.; Harmeson, Carol Lee · The Speech Teacher · 1963