There are entire online databases full of reference material. Try looking for info on your public policy in one or more of these:
This is a sample of the books WMU Libraries has related to public policy and public administration.
To see a description of these encyclopedias, mouse over the links below.
Encyclopedia of American Public Policy by 
Encyclopedia of Public Administration and Public Policy by 
Encyclopedia of Public Administration and Public Policy by 
Global Encyclopedia of Public Administration, Public Policy, and Governance by 
