DILWORTH JAMES B. (1989). PRODUCTION & OPERATIONS MANAGEMENT MANUFACTURING & NONMGTT AND NONMANUFACHRING (4.). MCGRAW-HILL.
Chicago-referens (17:e uppl.)DILWORTH JAMES B. PRODUCTION & OPERATIONS MANAGEMENT MANUFACTURING & NONMGTT AND NONMANUFACHRING. 4. NEW YORK: MCGRAW-HILL, 1989.
MLA-referens (9:e uppl.)DILWORTH JAMES B. PRODUCTION & OPERATIONS MANAGEMENT MANUFACTURING & NONMGTT AND NONMANUFACHRING. 4. MCGRAW-HILL, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.