Ratzinger. The Unity of the Nations. The Catholic University of America Press.
Chicago-čujuhus (17. p.)Ratzinger. The Unity of the Nations. The Catholic University of America Press.
MLA-čujuhus (9. p.)Ratzinger. The Unity of the Nations. The Catholic University of America Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.