SINGER, H. Rich And Poor Countries Hans Singer And Javed Asari. George Allen & Unwin.
Chicago-viite (17. p.)SINGER, Hans. Rich And Poor Countries Hans Singer And Javed Asari. George Allen & Unwin.
MLA-viite (8. p.)SINGER, Hans. Rich And Poor Countries Hans Singer And Javed Asari. George Allen & Unwin.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.