Keat, P. G. (2011). Managerial Economics (6th.). PEarson.
Chicago-čujuhus (17. p.)Keat, Paul G. Managerial Economics. 6th. PEarson, 2011.
MLA-čujuhus (9. p.)Keat, Paul G. Managerial Economics. 6th. PEarson, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.