Lua APA (7ú heag.)

Real Science Technology. Physical. Level 2, Unit C c.2.

Lua i Stíl Chicago (17ú heag.)

Real Science Technology. Physical. Level 2, Unit C C.2.

Lua MLA (9ú heag.)

Real Science Technology. Physical. Level 2, Unit C C.2.

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