ROBERTS HARRY V. (1993). QUALITY IS PERSONAL: A FOUNDATION FOR TOTAL QUALITY MANAGEMENT. FREE PRESS.
Lua i Stíl Chicago (17ú heag.)ROBERTS HARRY V. QUALITY IS PERSONAL: A FOUNDATION FOR TOTAL QUALITY MANAGEMENT. NEW YORK: FREE PRESS, 1993.
Lua MLA (9ú heag.)ROBERTS HARRY V. QUALITY IS PERSONAL: A FOUNDATION FOR TOTAL QUALITY MANAGEMENT. FREE PRESS, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.