Encyclopedia > Aozora Bunko: S

  Article Content

Aozora Bunko: S

See Aozora Bunko

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article

... unit area or volume. Often used is population density, meaning how many people per square kilometre (or square mile) on average live in an area. The density of ...