{"contributors":[{"last":"Pawson","first":"Ray","function":"author"},{"last":"Tilley","first":"Nick","function":"author"}],"title":"Realistic evaluation","style":"apa","source":"website","website":{"title":"Realistic evaluation"},"isbn":null,"pubonline":{"url":"http:\/\/public.eblib.com\/choice\/PublicFullRecord.aspx?p=6351395","title":"Realistic evaluation"},"oclc":"646026852","datasource":"http:\/\/www.worldcat.org","pubtype":{"main":"pubonline"}}