Ėtiket russkogo pisʹma [Uchebnoe posobie dli︠a︡ studentov-inostrant︠s︡ev]
Akishina, A. A.(Alla Aleksandrovna)
Formanovskai︠a︡, N. I.(Natalʹi︠a︡ Ivanovna)
Moskva Izd-vo "Russkiĭ i︠a︡zyk,"
1981
Letter writing, Russian.
Russian language