APA-Zitierstil (7. Ausg.)

Benson, G. T. (1930). The trees and shrubs of Western Oregon. University Press.

Chicago-Zitierstil (17. Ausg.)

Benson, Gilbert Thereon. The Trees and Shrubs of Western Oregon. Stanford: University Press, 1930.

MLA-Zitierstil (9. Ausg.)

Benson, Gilbert Thereon. The Trees and Shrubs of Western Oregon. University Press, 1930.