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. West Virginia University Press.
Цитирование в стиле Чикаго (17-е изд.)Core, Earl Lemley, и Nelle P. Ammons. Woody Plants in Winter: A Manual of Common Trees and Shrubs in Winter in the Northeastern United States and Southeastern Canada. Morgantown: West Virginia University Press, 1999.
Цитирование MLA (9-е изд.)Core, Earl Lemley, и Nelle P. Ammons. Woody Plants in Winter: A Manual of Common Trees and Shrubs in Winter in the Northeastern United States and Southeastern Canada. West Virginia University Press, 1999.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.