Selby, M. J. (1982). Hillslope materials and processes. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Selby, Michael John. Hillslope Materials and Processes. Oxford: Oxford University Press, 1982.
Lua MLA (9ú heag.)Selby, Michael John. Hillslope Materials and Processes. Oxford University Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.