Columbia subject headings:
Harvard subject headings:
Communicative competence.
Economy (Linguistics)
Professional employees--Language.
Professions--Terminology.
Russian language--Terms and phrases.
Standard language.
Sublanguage.
Princeton subject headings:
Communicative competence.
Economy (Linguistics)
Professional employees--Language.
Professions--Terminology.
Russian language--Terms and phrases.
Standard language.
Sublanguage.