00257nam a2200109 a 450000500170000008200200001710000180003724500350005526000270009030000150011770000150013220251203091018.0  a332.49,bD, atc  aAtchkassov, A  aTwo worlds two monetay systems  aMoscowbProgressc1986  a251p, 22cm  aPreksin, O