M.E. Sumner, Gypsum and Acid Soils: The World Scene.
R.L. Blevins and W.W. Frye, Conservation Tillage: An Ecological Approach to Soil Management.
P.A. Peterson, Transposable Elements in Maize: Their Role in Creating Genetic Variability.
J. Funderburk, L. Higley, and G.D. Buntin, Concepts and Directions in Arthropod Pest Management.
G.J. Wagner, Accumulation of Cadmium in Crop Plants and Its Consequences to Human Health.