BESTERFIELD DALE H. (1986). QUALITY CONTROL (2.). PRENTICE -HALL INTERNATIONAL, INC.
Lua i Stíl Chicago (17ú heag.)BESTERFIELD DALE H. QUALITY CONTROL. 2. LONDNN: PRENTICE -HALL INTERNATIONAL, INC, 1986.
Lua MLA (9ú heag.)BESTERFIELD DALE H. QUALITY CONTROL. 2. PRENTICE -HALL INTERNATIONAL, INC, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.