Bennett, W. J. (1999). The index of leading cultural indicators: American society at the end of the 20th century (Updated and expanded [edition].). Broadway Books ; WaterBrook Press.
Lua i Stíl Chicago (17ú heag.)Bennett, William J. The Index of Leading Cultural Indicators: American Society at the End of the 20th Century. Updated and expanded [edition]. New York : Colorado Springs: Broadway Books ; WaterBrook Press, 1999.
Lua MLA (8ú heag.)Bennett, William J. The Index of Leading Cultural Indicators: American Society at the End of the 20th Century. Updated and expanded [edition]. Broadway Books ; WaterBrook Press, 1999.
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