Harrington, H. J. (1995). Total Improvement Management. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Harrington, H. James. Total Improvement Management. McGraw-Hill, 1995.
Lua MLA (8ú heag.)Harrington, H. James. Total Improvement Management. McGraw-Hill, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.