(2013). Employment situation in January 2013 (Final results). NSO Special Release.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Employment Situation in January 2013 (Final Results)." NSO Special Release 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Employment Situation in January 2013 (Final Results)." NSO Special Release, 2013.
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