Dyfyniad APA
ebrary, Inc, & Alexander, E. B. (2007). Serpentine geoecology of western North America: Geology, soils, and vegetation. Oxford University Press.
Dyfyniad Arddull Chicago
ebrary, Inc, and Earl B. Alexander. Serpentine Geoecology of Western North America: Geology, Soils, and Vegetation. New York: Oxford University Press, 2007.
Dyfyniad MLA
ebrary, Inc, and Earl B. Alexander. Serpentine Geoecology of Western North America: Geology, Soils, and Vegetation. Oxford University Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.