Lua APA (7ú heag.)

Sheldon, S. (1988). The sand of time. HarperCollins Publishers.

Lua i Stíl Chicago (17ú heag.)

Sheldon, Sidney. The Sand of Time. London: HarperCollins Publishers, 1988.

Lua MLA (8ú heag.)

Sheldon, Sidney. The Sand of Time. HarperCollins Publishers, 1988.

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