Não informado. (2004). World population. U.S. Department of Commerce, Bureau of the Census.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. World Population. Washington: U.S. Department of Commerce, Bureau of the Census, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. World Population. U.S. Department of Commerce, Bureau of the Census, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.