Shell, G. R. (2006). Bargaining for Advantage (2nd.). Penguin.
Chicago-čujuhus (17. p.)Shell, G. Richard. Bargaining for Advantage. 2nd. New York: Penguin, 2006.
MLA-čujuhus (9. p.)Shell, G. Richard. Bargaining for Advantage. 2nd. Penguin, 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.