Lua APA (7ú heag.)

Asimov, I. (1997). The caves of steel. HarperCollins Publishers.

Lua i Stíl Chicago (17ú heag.)

Asimov, Isaac. The Caves of Steel. London: HarperCollins Publishers, 1997.

Lua MLA (8ú heag.)

Asimov, Isaac. The Caves of Steel. HarperCollins Publishers, 1997.

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