Irwin, D. (1999). On target: Achieving best business performance. London: International Thomson Business Press.
استشهاد بنمط شيكاغوIrwin, David. On Target: Achieving Best Business Performance. London: International Thomson Business Press, 1999.
MLA استشهادIrwin, David. On Target: Achieving Best Business Performance. London: International Thomson Business Press, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.