Hamel, G. (1994). Competing for the Future. McGraw Hill.
Chicago-čujuhus (17. p.)Hamel, Gary. Competing for the Future. McGraw Hill, 1994.
MLA-čujuhus (9. p.)Hamel, Gary. Competing for the Future. McGraw Hill, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.