Gilbert, J. (1993). Total Quality management. Affiliated East West press.
Lua i Stíl Chicago (17ú heag.)Gilbert, John. Total Quality Management. New delhi: Affiliated East West press, 1993.
Lua MLA (9ú heag.)Gilbert, John. Total Quality Management. Affiliated East West press, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.