Mysterious crop circles  
Rob Waring, Series Editor; National Geographic 
 - London ; United States :   Heinle, Cengage Learning,  c2009. 
 - 24 p. :   col. ill., col. maps ;  22 cm. 
 - Footprint reading library .
 - Footprint reading library .
<br/><br/> Upper Intermediate B2<br/>1900 headwords 
<br/><br/>  	<br/><br/>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... 
<br/><br/><label>ISBN: </label>9781424011407 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop circles--Juvenile literature<br/>English language--Listening comprehension<br/>English language--Textbooks for foreign speakers
<br/><br/><label>Dewey Class. No.: </label>428.6 MY ST