Trees of Western North America

MLA

Spellenberg, Richard, et al. Trees of Western North America. Course Book. Princeton, New Jersey : Princeton University Press, 2014.

APA

Spellenberg, R., Earle, C., Nelson, G., More, D. & Hughes, A. (2014). Trees of Western North America. Course Book. Princeton, New Jersey : Princeton University Press.

Chicago

Spellenberg, Richard, Christopher J. Earle, Gil Nelson, David More and Amy K. Hughes. Trees of Western North America. Edited by Amy K. Hughes. Course Book. Princeton, New Jersey : Princeton University Press, 2014.