Pages 68-69 in Review of Extension Research, January through December 1957. Summary of a thesis for the Master of Science degree at the University of Illinois, Urbana. 95 pages. 1956.
Page 72 in Review of Extension Research, January through December 1957. Brief description of Extension Circular 514, U.S. Federal Extension Service, U.S. Department of Agriculture, Washington, D.C. 1957. 83 pages.