Reidenbach, R. E. (2009). Six sigma marketing: From cutting costs to growing market share. ASQ Quality Press.
Lua i Stíl Chicago (17ú heag.)Reidenbach, R. Eric. Six Sigma Marketing: From Cutting Costs to Growing Market Share. Milwaukee, Wisconsin: ASQ Quality Press, 2009.
Lua MLA (9ú heag.)Reidenbach, R. Eric. Six Sigma Marketing: From Cutting Costs to Growing Market Share. ASQ Quality Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.