Keat, P. G. (2011). Managerial Economics (6th.). PEarson.
Lua i Stíl Chicago (17ú heag.)Keat, Paul G. Managerial Economics. 6th. PEarson, 2011.
Lua MLA (9ú heag.)Keat, Paul G. Managerial Economics. 6th. PEarson, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.