Pages 10-11 in Extension Circular 521, Review of Extension Research, January through December 1958, U.S. Department of Agriculture, Washington, D.C. Summary of a thesis for a Master of Science degree in agricultural extension, Michigan State University, East Lansing. 1958. 79 pages.
Pages 74-75 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of research report, Extension Service, Michigan State University, E. Lansing. 1959. 17 pages.
Pages 15-16 in Extension Circular 541, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of research for a doctor of education degree in extension education, Cornell University, Ithaca, New York. 1961. 200 pages.
