http://gandeste-rational.blogspot.com/
http://www.facebook.com/gandeste.rational
http://www.scientia.ro/blogul-lui-madalin.html
VIDEO
BBC How many people can live on Planet Earth?
Home, by Yann Arthus-Bertrand
AUDIO
Audio Machine, Elm Street
Moby, In my heart
DATE
Population reference bureau
United Nations Population Fund
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