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.
Page 77 in Extension Service Circular 544, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of Federal Extension Service, ER&T-77, U.S.Department of Agriculture, Washington, D.C. 1962. 3 pages.
Pages 61-62 in Extension Circular 534, Review of Extension Research, January through December 1960, U.S. Department of Agriculture, Washington, D.C. Summary of ER&T-38 (3-60), Federal Extension Service, U.S. Department of Agriculture, Washington,D.C. 1960. 4 pages.
Page 77 in Extension Service Circular 544, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of Federal Extension Service, ER&T-146, U.S.Department of Agriculture, Washington, D.C. 1962. 3 pages.
Page 77 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of research report by the Information Division, Agricultural Research Service, U.S. Department of Agriculture, Washington, D.C. 1959. 46 pages.
Pages 70-71 in Extension Circular 541, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of Federal Extension Service ER&T-141, U.S. Department of Agriculture, Washington, D.C.. 1961. 5 pages.
