Text ( visual ) : unmediated Price discrimination in property and liability insurance / by C. Arthur Williams, Jr.. -- Minneapolis : University of Minnesota Press , 1959. -- vi, 100 p. : ill. ; 23 cm. -- (University of Minnesota studies in economics and business ; no. 19). -- Includes bibliographical references (p. 98). -- (BA23331317) ; https://ci.nii.ac.jp/ncid/BA23331317 Author Heading(s): Williams, C. Arthur (Chester Arthur)