Ellie Tragakes. (2019). Economics For The IB Diploma. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Ellie Tragakes. Economics For The IB Diploma. Cambridge University Press, 2019.
Lua MLA (9ú heag.)Ellie Tragakes. Economics For The IB Diploma. Cambridge University Press, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.