Columbia subject headings:
Abbreviations, English--Dictionaries--Russian.
Telecommunication--Abbreviations--Dictionaries--English.
Telecommunication--Acronyms--Dictionaries.
Harvard subject headings:
Princeton subject headings:
Dictionaries.
English language--Dictionaries--Russian.
Telecommunication--Abbreviations.
Telecommunication--Acronyms.
Telecommunication--Dictionaries.