Arno, S. F., & Hammerly, R. P. (2007). Northwest trees: Identifying and understanding the region's native trees (Anniversary ed., rev. ed.). Mountaineers Books.
Цитирование в стиле Чикаго (17-е изд.)Arno, Stephen F., и Ramona P. Hammerly. Northwest Trees: Identifying and Understanding the Region's Native Trees. Anniversary ed., rev. ed. Seattle, WA: Mountaineers Books, 2007.
Цитирование MLA (8-е изд.)Arno, Stephen F., и Ramona P. Hammerly. Northwest Trees: Identifying and Understanding the Region's Native Trees. Anniversary ed., rev. ed. Mountaineers Books, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.