Lua APA (7ú heag.)

Susan Grant. (2018). Cambridge IGCSE® and O Level Economics Coursebook (Cambridge International IGCSE) (2.). Cambridge University Press.

Lua i Stíl Chicago (17ú heag.)

Susan Grant. Cambridge IGCSE® and O Level Economics Coursebook (Cambridge International IGCSE). 2. Cambridge University Press, 2018.

Lua MLA (9ú heag.)

Susan Grant. Cambridge IGCSE® and O Level Economics Coursebook (Cambridge International IGCSE). 2. Cambridge University Press, 2018.

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