Text ( visual ) : unmediated Grundlagen des Rechts der sozialen Sicherheit / von Arnt Richter. -- Stuttgart : Kohlhammer , c1979. -- 333 p. ; 21 cm. -- (Wissenschaft + soziale Praxis). -- Bibliography: p. 308-309 ; Includes index. -- ISBN 3170051180 ; (BA38140378) ; https://ci.nii.ac.jp/ncid/BA38140378 Author Heading(s): Richter, Arnt. -- Classification(s): LCC : LAW ; DC : 344.43. -- Subject Heading(s): LCSH : Social legislation -- Germany, West -- History ; LCSH : Social security -- Law and legislation -- Germany, West -- History