Knebel, F. (1964). Convention. Harper and Row.
Chicago-čujuhus (17. p.)Knebel, Fletcher. Convention. New York, Estados Unidos: Harper and Row, 1964.
MLA-čujuhus (9. p.)Knebel, Fletcher. Convention. Harper and Row, 1964.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.