Río, A. d. (1955). Responsible freedom in the Americas. Doubleday.
Chicago-čujuhus (17. p.)Río, Angel del. Responsible Freedom in the Americas. Nueva York: Doubleday, 1955.
MLA-čujuhus (9. p.)Río, Angel del. Responsible Freedom in the Americas. Doubleday, 1955.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.