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  Modern Geometries: Non-Euclidean, Projective, and Discrete - Michael Henle - Google Books

  http://books.google.de/books?id=84IpAQAAMAAJ

  Engaging, accessible, and extensively illustrated, this brief, but solid introduction to modern geometry describes geometry as it is understood and used by contemporary mathematicians and theoretical scientists. Basically non-Euclidean in approach, it…

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  Brasil – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Brasil?uselang=de

  Keine Beschreibung vorhanden.

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  About the USA - Gesellschaft > Schwarze Amerikaner

  http://usa.usembassy.de/gesellschaft-blacks.htm

  Keine Beschreibung vorhanden.

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