Lua APA (7ú heag.)

(2009). PYP L5 Caring for Our World single (Pearson Baccalaureate PrimaryYears Programme). Heinemann.

Lua i Stíl Chicago (17ú heag.)

PYP L5 Caring for Our World Single (Pearson Baccalaureate PrimaryYears Programme). Heinemann, 2009.

Lua MLA (9ú heag.)

PYP L5 Caring for Our World Single (Pearson Baccalaureate PrimaryYears Programme). Heinemann, 2009.

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