Cita APA
Spellenberg, R., Earle, C. J., Nelson, G., More, D., & Hughes, A. K. (2014). Trees of Western North America. Princeton University Press.
Citación estilo Chicago
Spellenberg, Richard, Christopher J. Earle, Gil Nelson, David More, and Amy K. Hughes. Trees of Western North America. Princeton, New Jersey: Princeton University Press, 2014.
Cita MLA
Spellenberg, Richard, et al. Trees of Western North America. Princeton University Press, 2014.
Warning: These citations may not always be 100% accurate.