Mysterious Crop Circles

Author(s): National Geographic Staff; Rob Waring

Natural History

Several strange signs called 'crop circles' have been discovered in the fields of southern England. These mysterious circles are puzzling to everyone, even scientists. There are several theories about who--or what--made them. Could it be humans who did it? Or could it be something else...

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Product Information

General Fields

  • : 9781424011407
  • : Cengage Learning
  • : National Geographic Learning
  • : December 2008
  • : .2 Centimeters X 15 Centimeters X 21.1 Centimeters
  • : books

Special Fields

  • : National Geographic Staff; Rob Waring
  • : Paperback
  • : 24