Wilkie, C. Special drawing rights (SDRs). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Wilkie, Christopher. Special Drawing Rights (SDRs). Oxford University Press.
Lua MLA (8ú heag.)Wilkie, Christopher. Special Drawing Rights (SDRs). Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.