Barwise,Patrick. (2004). Simply better (1.). Harvard Business Press.
Chicago-čujuhus (17. p.)Barwise,Patrick. Simply Better. 1. Harvard Business Press, 2004.
MLA-čujuhus (9. p.)Barwise,Patrick. Simply Better. 1. Harvard Business Press, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.