SINGER, H. Rich And Poor Countries Hans Singer And Javed Asari. George Allen & Unwin.
Lua i Stíl Chicago (17ú heag.)SINGER, Hans. Rich And Poor Countries Hans Singer And Javed Asari. George Allen & Unwin.
Lua MLA (8ú heag.)SINGER, Hans. Rich And Poor Countries Hans Singer And Javed Asari. George Allen & Unwin.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.