Pages 55-56 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of research reported in Kentucky Agricultural Experiment Station Progress Report 82. 1959. 42 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.
Page 79 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of research report, College of Agriculture, University of Illinois, Urbana. 1959. 24 pages.
Page 74 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of research paper for a master of science degree in agricultural journalism, University of Wisconsin, Madison. 1959. 49 pages.
