Arno, S. F., & Hammerly, R. P. (2007). Northwest trees: Identifying and understanding the region's native trees (Anniversary ed., rev. ed.). Mountaineers Books.
Style de citation Chicago (17e éd.)Arno, Stephen F., et Ramona P. Hammerly. Northwest Trees: Identifying and Understanding the Region's Native Trees. Anniversary ed., rev. ed. Seattle, WA: Mountaineers Books, 2007.
Style de citation MLA (8e éd.)Arno, Stephen F., et Ramona P. Hammerly. Northwest Trees: Identifying and Understanding the Region's Native Trees. Anniversary ed., rev. ed. Mountaineers Books, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.