How do I exclude certain reference types from auto-generated bibliography?

I am writing my MA thesis with Endnote X2 (mac) and it has been a very useful tool. However, I cite a large number of newspaper and magazine articles, and while I want to format my citations in the footnotes, I do not want every one of these sources listed independently in my bibliography that will be at the end of my thesis. Instead, I plan to list the various newspapers (New York Times, etc.) individually in this bibliography. Is there a way I can tell EndNote not to include certain types of references, such as newspaper articles, in the auto-generated bibliography?

Thank you