Pages 62-63 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of research, Editorial Department and State 4-H Club office, South Dakota State University, Brookings. 1960. 29 pages.
Pages 64-65 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of a thesis for the master of science degree, Michigan State University, East Lansing. 1960. 120 pages.
Pages 63-64 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of a thesis for the master of science, Michigan State University, East Lansing. 1960. 100 pages.
Page 62 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of thesis for master of arts in adult education, University of Maryland, College Park. 1960. 91 pages.
