APA引文

Spellenberg, R., Earle, C. J., Nelson, G., More, D., & Hughes, A. K. (2014). Trees of Western North America. Princeton University Press.

Chicago Style (17th ed.) Citation

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.

MLA引文

Spellenberg, Richard, et al. Trees of Western North America. Princeton University Press, 2014.