LDR 00754naa#a2200205#i#450# 001 EN\INFRA-M\bibl\19312 005 20240503230839.5 011 ## _a2500-0497 100 ## _a20171220b2017####ek#y0engy0150####ca 101 0# _aRUS 102 ## _aRU 200 1# _aHistorical aspects of the development of water supply and sanitation systems in the Middle Ages and their impact on the current ecological situation in developing countries _eJournal article 210 1# _aMoscow _cINFRA-M Academic Publishing LLC. _d2017 215 ## _a6 с. 608 ## _aJournal article _2local 675 ## _aВсеобщая история. 94 _zRUS 700 #1 _aOrlov _gEvgeniy Vladimirovich 700 #1 _aShipkov _gOleg Ivanovich 700 #1 _aPeregudov _gDenis Aleksandrovich 856 4# _anaukaru.ru _u