Mitchell, O. S. (1993). As the workforce ages: Costs, benefits, and policy challenges. ILR Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMitchell, Olivia S. As the Workforce Ages: Costs, Benefits, and Policy Challenges. Ithaca, N.Y: ILR Press, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMitchell, Olivia S. As the Workforce Ages: Costs, Benefits, and Policy Challenges. ILR Press, 1993.
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