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100   $a20020410d1941----km-y0itay50------ba
101 0 $aeng
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200 1 $aEconomics of social security$fSeymour Harris
210   $aNew York$cMcGraw-Hill Book Company$d1941
215   $aXXVI, 455 p.$d24 cm
676   $a330$v20$zita
700  1$aHarris,$bSeymour Edwin$f<1897-1974>$0103369
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996   $aEconomics of social security$9501495
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