Tichenor, P.J.Donohue, G.A.Olien, C.N.2016-05-132016-05-131963-06[author. date. title]. St. Paul, MN: University of Minnesota Extension Service. [series]https://hdl.handle.net/11299/180296This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enReport