Can someone help me, please?

Can someone help me, please? We are to analyze a current social policy using the Karger & Stoesz four-pronged model. The problem is this is not covered in our text, nor can I find anything on this model; I have been to two libraries, looked all over the Internet, ask friends who work in human services, and no one seems to recognize this model. Could someone please send me information on this so that I can get this week's paper completed.

Thank you so very much.

Sami