APA (7 वां संस्करण) प्रशस्ति पत्र

Johnson, R., & Newmark, D. (1996). Age discrimination, job separations, and employment status of older workers: Evidence from self-reports. National Bureau of Economics.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Johnson, R.W, और David Newmark. Age Discrimination, Job Separations, and Employment Status of Older Workers: Evidence from Self-reports. Cambridge: National Bureau of Economics, 1996.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Johnson, R.W, और David Newmark. Age Discrimination, Job Separations, and Employment Status of Older Workers: Evidence from Self-reports. National Bureau of Economics, 1996.

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