Leopold, D. J., McComb, W. C., & Muller, R. N. (1998). Trees of the central hardwood forests of North America: An identification and cultivation guide. Timber Press.
Chicago Style (17th ed.) CitationLeopold, Donald Joseph, William C. McComb, and Robert N. Muller. Trees of the Central Hardwood Forests of North America: An Identification and Cultivation Guide. Portland, Or.: Timber Press, 1998.
MLA (9th ed.) CitationLeopold, Donald Joseph, et al. Trees of the Central Hardwood Forests of North America: An Identification and Cultivation Guide. Timber Press, 1998.
Warning: These citations may not always be 100% accurate.