Raffo, P. (1974). The League of Nations. Historical Association.
Chicago-čujuhus (17. p.)Raffo, Peter. The League of Nations. London: Historical Association, 1974.
MLA-čujuhus (9. p.)Raffo, Peter. The League of Nations. Historical Association, 1974.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
