DILWORTH JAMES B. (1989). PRODUCTION & OPERATIONS MANAGEMENT MANUFACTURING & NONMGTT AND NONMANUFACHRING (4.). MCGRAW-HILL.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDILWORTH JAMES B. PRODUCTION & OPERATIONS MANAGEMENT MANUFACTURING & NONMGTT AND NONMANUFACHRING. 4. NEW YORK: MCGRAW-HILL, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDILWORTH JAMES B. PRODUCTION & OPERATIONS MANAGEMENT MANUFACTURING & NONMGTT AND NONMANUFACHRING. 4. MCGRAW-HILL, 1989.
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