Lua APA (7ú heag.)

Thornbury, W. D. (1969). Principles Geomorphology. Wiley.

Lua i Stíl Chicago (17ú heag.)

Thornbury, William David. Principles Geomorphology. New York: Wiley, 1969.

Lua MLA (9ú heag.)

Thornbury, William David. Principles Geomorphology. Wiley, 1969.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.