by NationalGeographic (Author), RobWaring (Author), National Geographic (Author), Rob Waring (Author)
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...
Format: Paperback
Pages: 24
Publisher: Heinle-Cengage ELT
Published: 01 Nov 2008
ISBN 10: 1424012333
ISBN 13: 9781424012336