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1
Project Gutenberg
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2
by Mode, C.J.
Published 1985
Springer Berlin Heidelberg
“...According to a recent report of the United States Census Bureau, world population as of June 30...”
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3
by Murdock, Steve H., Cline, Michael E., Zey, Mary, Perez, Deborah
Published 2015
Springer Netherlands
“... with major long-term implications. Drawing on The United States Census Bureau’s post-2010 detailed...”
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4
Published 2007
Springer New York
“..., as well as improvements in life expectancy, the United States Census Bureau projects that by 2050...”