Core, E. L., & Ammons, N. P. (1999). Woody plants in winter: A manual of common trees and shrubs in winter in the northeastern United States and southeastern Canada [E-Book] / by Earl L. Core and Nelle P. Ammons. Morgantown: West Virginia University Press.

Core, Earl Lemley, andfavorite Nelle P. Ammons. Woody Plants in Winter: A Manual of Common Trees and Shrubs in Winter in the Northeastern United States and Southeastern Canada [E-Book] / By Earl L. Core and Nelle P. Ammons. Morgantown: West Virginia University Press, 1999.

Core, Earl Lemley, andfavorite Nelle P. Ammons. Woody Plants in Winter: A Manual of Common Trees and Shrubs in Winter in the Northeastern United States and Southeastern Canada [E-Book] / By Earl L. Core and Nelle P. Ammons. Morgantown: West Virginia University Press, 1999.