Is there a source in the literature for ribbon diagrams for the knot-table knots known to be ribbon knots?


For example, I'm interested in doing a computation which needs as input a ribbon diagram for the knot $8\_{20}$ (Rolfsen knot table notation). This knot is known to be ribbon, but I don't know a ribbon diagram for the knot. 


Usually when I encounter a claim of the sort "knot X is ribbon" either the author supplies the ribbon diagram, or nothing. Citations to information of this sort seem kind of sparse. Or am I just unaware of a standard source for this type of information? 



Generating ribbon diagrams for knots known to be ribbon knots
I think Kawauchi's book has tables that include ribbon diagrams, but I don't have a copy with me. Look at 
 [Livingston and Cha](http://www.indiana.edu/~knotinfo/diagrams/8_20.png) . It is not hard to get a ribbon disk from this diagram: add a handle between the ears on the top and bottom right. 


Generally, I check  [Livingston/Cha](http://www.indiana.edu/~knotinfo/) ,  [Bar-Natan,](http://www.math.toronto.edu/~drorbn/KAtlas/Knots/8.20.html)  and  [Saito](http://shell.cas.usf.edu/quandle/Invariants/database/database.php)  for various information.


@ears: there are a pair of symmetric clasps on the top and bottom of the diagram. Pull the top-most and bottom-most arc to the right, and then attach a band. The vertical arc that forms a triangle, and the right vertical arc from the band forms an obvious embedded circle. 


