Lua APA (7ú heag.)

Angela Royston. (2003). Heavy and Light (Heinemann First Library). Heinemann/Raintree.

Lua i Stíl Chicago (17ú heag.)

Angela Royston. Heavy and Light (Heinemann First Library). Heinemann/Raintree, 2003.

Lua MLA (9ú heag.)

Angela Royston. Heavy and Light (Heinemann First Library). Heinemann/Raintree, 2003.

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