http://digfir-published.macmillanusa.com/cogtk/gestalt perception.html\t Chapter 1. Gestalt Perception \t5101af00b11c0f086c000000 http://digfir-published.macmillanusa.com/cogtk/gestalt perception_dlap.xml\tDLAP questions\t5101af00b11c0f086c000000