Greenhalgh, C., & Rogers, M. (2007). Trade Marks and Performance in UK Firms: Evidence of Schumpeterian Competition through Innovation. Department of Economics (University of Oxford).
Lua i Stíl Chicago (17ú heag.)Greenhalgh, C., agus M. Rogers. Trade Marks and Performance in UK Firms: Evidence of Schumpeterian Competition Through Innovation. Department of Economics (University of Oxford), 2007.
Lua MLA (9ú heag.)Greenhalgh, C., agus M. Rogers. Trade Marks and Performance in UK Firms: Evidence of Schumpeterian Competition Through Innovation. Department of Economics (University of Oxford), 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.