David M. Olson, Eric Dinerstein. The Global 200: Priority Ecoregions for Global Conservation. „Annals of the Missouri Botanical Garden”. 89 (2), s. 199, 2003. DOI: 10.2307/3298564.
Don Faber-Langendoen, Todd Keeler-Wolf, Del Meidinger, Carmen Josse, Alan Weakley, David Tart, Gonzalo Navarro, Bruce Hoagland, Serguei Ponomarenko, Gene Fults, Eileen Helmer: Classification and Description of World Formation Types. USDA, Department of Agriculture, 2016. [dostęp 2022-02-07].
researchgate.net
Elgene O. Box, Kazue Fujiwara: Vegetation Types and Their Broad-scale Distribution. W: Eddy van der Maarel, Janet Franklin (red.): Vegetation Ecology. John Wiley & Sons, Ltd., 2013, s. 455-485.