Lua APA (7ú heag.)
ebrary, Inc, Lauenroth, W. K., & Burke, I. C. (2008). Ecology of the shortgrass steppe: A long-term perspective. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, William K. Lauenroth, agus Ingrid C. Burke. Ecology of the Shortgrass Steppe: A Long-term Perspective. Oxford ; New York: Oxford University Press, 2008.
Lua MLA (9ú heag.)
ebrary, Inc, et al. Ecology of the Shortgrass Steppe: A Long-term Perspective. Oxford University Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.