00377cam a2200145ua 4500041001000000082001800010100002100028245006800049250001200117260005900129300001200188504000500200942000700205999001900212  aengh  a491.7bPOT/RU  aPotapova, N F  .  aRussian: Elementary course / cN F Potapova.hTextual Documents  a1 / b.  aMoscow : bForeign Language Publishing House , c1955.  a479 ; .  a  cBK  c333247d333247