Laboratory outlines in plant pathology, by H. H. Whetzel, Lex R. Hesler, Chas. T. Gregory, W. Howard Rankin. New York State College of Agriculture at Cornell University, Ithaca, N. Y., 1916.Herbert Hice Whetzel1916EN
Virus Disease Control Experiments in Black Raspberry Plantings in 1931 / L.M. Cooley and W. Howard Rankin.L. Cooley1931EN