Pages 59-61 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of dissertation research for doctor of philosophy in extension education, Cornell University, Ithaca, New York. 1960. 278 pages.
Page 26 in Extension Circular 521, Review of Extension Research, January through December 1958, U.S. Department of Agriculture, Washington, D.C. Summary of a research paper for a Master of Science degree in agricultural journalism, University of Wisconsin, Madison. 1958. 66 pages.