Lua APA (7ú heag.)

Cooper, C. (1992). Matéria. Verbo.

Lua i Stíl Chicago (17ú heag.)

Cooper, Christopher. Matéria. Verbo, 1992.

Lua MLA (8ú heag.)

Cooper, Christopher. Matéria. Verbo, 1992.

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