Balling, R. C., & Williams, M. A. J. (1996). Interactions of desertification and climate. Arnold.
Lua i Stíl Chicago (17ú heag.)Balling, Robert C., agus Martin A J. Williams. Interactions of Desertification and Climate. London: Arnold, 1996.
Lua MLA (9ú heag.)Balling, Robert C., agus Martin A J. Williams. Interactions of Desertification and Climate. Arnold, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.