Pages 13-14 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 education, Louisiana State University, Baton Rouge. 1961. 141 pages.
Page 78 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 arts degree, Ohio State University, Columbus. 1961. 119 pages.
Pages 66-67 in Review of Extension Research, January through December 1957. Summary of a thesis for the Master of Science degree at Iowa State College, Ames. 1957. 85 pages.
