Stafford, T. (1984). Friendship across cultures. STL Books.
Chicago-čujuhus (17. p.)Stafford, Tim. Friendship Across Cultures. England: STL Books, 1984.
MLA-čujuhus (9. p.)Stafford, Tim. Friendship Across Cultures. STL Books, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.