A study of the history and development of visual aids used in extension work in the United States and suggested applications of the findings for the development of a visual aids section at the Agricultural College and Research Institute, Coimbatore, Madras State, India
Pages 86-87 in Extension Circular 541, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of a thesis for the master of science degree in agricultural extension, University of Tennessee, Knoxville. 1961. 281 pages.