Ithaca (N. Y.), Published by the University, s.d. (vers 1910) ; 147 x 230 mm, 92 pp., doubles-feuilles agrafées (petites déchirures aux pages 413-414, 503-504). En langue anglaise. Cornell University Agricultural Experiment Station of the College of Agriculture, Department of Plant Pathology, Bulletin 315. June 1912. Bon état.