1. What We Know about Listening: Continuation of a Controversy
2. What We Know about Listening
3. Pratt, L. E. 1953. “The Experimental Evaluation of a Program for the Improvement of Listening in the Elementary School.”. The University of Iowa. (Unpubl. Ph.D. dissertation
4. Hogan, Ursula. 1953. “An Experiment in Improving the Listening Skills of Fifth and Sixth Grade Pupils”. University of California. (M.A. Seminar Study