- Crop Circles (The Mysterious & Unknown) by Stuart A. Kallen, 2010-01
- Bible Encoded Crop Circle Gods: The Bible and Crop Circles are Decoded to Reveal Their Common Source. Four Alien Mysteries Explained--Origin of UFOs, Mars ... Crop Circles, and the Torah's Text. by Steve Canada, 2006-06-05
- Crop Circles (Wooden Books Gift Book) by Michael Glickman, 2005-02-15
- Crop Circles: Signs of Contact by Colin Andrews, Stephen J. Spignesi, 2003-03
- Signs On The Earth: Deciphering The Message Of Virgin Mary Apparitions, UFO Encounters, and Crop Circles by Richard Leviton, 2005-06-10
- Government Circles by Colin Andrews, 2009-04-07
- Crop Circles Revealed: Language of the Light Symbols by Barbara Lamb, 2001-10-15
- Crop Circles Stained Glass Coloring Book (Dover Coloring Books) by Jessica Mazurkiewicz, 2009-08-21
- Crop Circle Babies!: Geometry for Newborns (Volume 1) by Adam Wolfe, 2009-12-01
- Crop Circle Note Cards Gift Set #1 by Darwin K Foye, 2002-11-07
- The Adventures of Roo & Winston - Crop Circles by Brenda Bryson, 2009-11-16
- Creation: Towards a Theory of All Things by John Umana, 2005-05-24
- Crop Circles: Signs, Wonders and Mysteries [CROP CIRCLES] [Hardcover]
- A Small Archive of Geometric Terraformations (Crop Circle Jerk) by Gerald Edwards III, 2009-01-01
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