Page 77-78 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of thesis for master of science degree, Michigan State University, East Lansing. 1959. 117 pages.
Page 56-57 in Extension Circular 541, Review of Extension Research, January through December 1961, U.S. Department of Agriculture, Washington, D.C. Summary of a thesis for the master of science degree, Ohio State University, Columbus. 1960. 79 pages.
Page 55 in Extension Circular 532, Review of Extension Research, January through December 1959, U.S. Department of Agriculture, Washington, D.C. Summary of thesis for a master of science degree, University of Kentucky, Lexington. 1959. 42 pages.
Pages 53-54 in Review of Extension Research, January through December 1957. Information Sheet 540, Mississippi Agricultural Experiment Station, Mississippi State University, State College. 1956.
