http://www.ravelry.com/patterns/library/knitted-ruana
Sharing of patterns in books is a copyright violation. I suggest looking in libraries or a for used one if you don't want to buy a new book. Amazon has used Folk Shawls books starting at $8 and I checked my own libraries and there are 5 available.
Or you could find an alternative or make one up. It's a knitted rectangle with a neck hole and collar in the center.