00539nam#a2200193#i#450# EN\INFRA-M\book\193 /en/manage/index 20251012161605.7 20140306d2014####ek#y0engy0150####ca RUS RU Service activity Textbook Moscow INFRA-M Academic Publishing LLC. 2014 202 с. Textbook local Ryeznik Galina Aleksandrovna Maskayeva Asiya Ponomaryenko YUliya test.editorum.ru /en/manage/index