1. Public opinion studies are important, but you must know how to rate them Collection: Agricultural Communications Documentation Center (ACDC) Contributers: American Dairy Association (author) Format: Journal article Publication Date: 1963-04 Published: USA: American Dairy Association,Chicago, Illinois Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 140 Document Number: C21309 Journal Title: Public Relations Tips for Dairymen Journal Title Details: 3(4) : 1-4