Nicholls, G. (2002). Alpine plants of North America: An encyclopedia of mountain flowers from the Rockies to Alaska. Timber Press.
Chicago Style (17th ed.) CitationNicholls, Graham. Alpine Plants of North America: An Encyclopedia of Mountain Flowers from the Rockies to Alaska. Portland, OR: Timber Press, 2002.
MLA (8th ed.) CitationNicholls, Graham. Alpine Plants of North America: An Encyclopedia of Mountain Flowers from the Rockies to Alaska. Timber Press, 2002.
Warning: These citations may not always be 100% accurate.