00651naa#a2200169#i#4500001001500000005001700015011001400032100004100046102000700087200005700094210012500151215001000276608002700286675011600313700003000429856002200459EN\\bibl\9801120250522150131.4##a2686-9896##a20250428b2025####ek#y0engy0150####ca##aRU1#aTHE STRUCTURE OF COMMERCIAL LETTERSeJournal article1#aAngarskcFederal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»d2025##a1 с.##aJournal article2local##aУправление предприятиями. Организация и техника торговли. 658#1aGringNadezhda Vasil'evna4#aangtu.editorum.ru