Histological Differentiation Among Abiotic Causes of Conifer Needle Necrosis / Clinton E. Carlson, Carma J. Gilligan.Charles W. George, Clinton E. Carlson & 6 more1983
Rooting of Needle Fascicles from Western White Pine Seedlings / Raymond J. Hoff and Geral I. McDonald.R. J. Hoff1968EN
Annual Needle and Leaf Fall in an Arizona Mixed Conifer Stand / Gerald J. Gottfried and Peter F. Ffolliott.Gerald J. Gottfried1983EN
Effect of Rooting Mediums and Hormone Application on Rooting of Western White Pine Needle Fascicles / Geral I. McDonald and Raymong J. Hoff.G. McDonald1969EN