%0 Thesis %D 1971 %T An Assessment of the Role of Volcanic Dust in Determining Modern Changes in the Temperature of the Northern Hemisphere %A Reitan, Clayton Harold %Y Bryson, Reid A. %K Meterology %I University of Wisconsin %V PhD %G eng %U http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=756913801&sid=8&Fmt=1&clientId=43922&RQT=309&VName=PQD