Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Social Welfare Policy: Responding to a Changing World
Product description: "...we are in the midst of economic, social and political changes akin to those of the industrial revolution and the authors make a good case for what this might mean for society, and how we need to change our thinking about social welfare policy." --Martha Byam, University of New Hampshire, John G. McNutt (MSW, University of Alabama; PhD, University of Tennessee) is professor of public policy and administration at the University of Delaware. His many published works include four coauthored or coedited books and articles, book chapters, book reviews and other published materials on advocacy, nonprofits, volunteerism, community development technology and nonprofit organizations, and technology and public participation. Richard Hoefer (MSW, University of Kansas; PhD, University of Michigan, Ann Arbor) is the Roy E. Dulak Professor for Community Practice Research in the School of Social Work at the University of Texas at Arlington. He has been at UTA since 1992, publishing frequently and teaching on advocacy, grant writing, program evaluation, and nonprofit management topics. He is the author of Advocacy Practice for Social Justice published by Lyceum Books.
Product brand: John G. McNutt
Target attributes: Reference Type
Answer: attribute: reference type
value: None
source: None