DUNCAN ACHESON J. (1965). QUALITY CONTROL AND INDUSTRIAL STATISTICS. R D IRWIN.
Lua i Stíl Chicago (17ú heag.)DUNCAN ACHESON J. QUALITY CONTROL AND INDUSTRIAL STATISTICS. INDIA: R D IRWIN, 1965.
Lua MLA (9ú heag.)DUNCAN ACHESON J. QUALITY CONTROL AND INDUSTRIAL STATISTICS. R D IRWIN, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.