Crop Circles Were Made by Supernatural Forces. Named Doug and Dave. - The New York Times
Fields of dreams: who creates Britain's crop circles?
Crop Circles Were Made by Supernatural Forces. Named Doug and Dave. - The New York Times
crop circle collaboration at Peacedale Preserve - Natural Lands
Mysterious Crop Circles Re-Appear in Russian Field
Crop Circle: Prank, Alien Contact, or X-Files Alternate Reality Game? | WIRED
Britain from the Air - Crop Circles
Crop circle - Wikipedia
Crop circles demystified: how the patterns are created
Crop circle found in Wiltshire
Crop Circles: The Art of the Hoax | Arts & Culture| Smithsonian Magazine
Criminal damage warning over Wiltshire crop circle increase
Crop Circle Exhibition & Information Centre - in PEWSEY, Kennet - Great West Way
Crop Circles: The Art of the Hoax | Arts & Culture| Smithsonian Magazine
Crop Circle Visitor Centre & Exhibition - Visit Wiltshire
Crop circle | Mystery, Phenomenon, Hoax | Britannica
Crop Circles: The Art of the Hoax | Arts & Culture| Smithsonian Magazine
In pictures: Crop circles from the air | Environment | The Guardian
Scientific crop circle research held back by links to UFO conspiracies - ABC News
Wiltshire crop circle brings hundreds to farm - BBC News
Free Online Circle Crop Tool - Crop & edit a photo to a circle
Crop circle | Mystery, Phenomenon, Hoax | Britannica
Confessions of a crop circle chaser - The Boston Globe
