Columbia subject headings:
Aeronautics--Terminology.
English language--Technical English.
English language--Textbooks for foreign speakers--German.
Harvard subject headings:
Aeronautics--Terminology
English language--Technical English
English language--Textbooks for foreign speakers--German
Princeton subject headings:
Aeronautics--Terminology.
English language--Technical English.
English language--Textbooks for foreign speakers--German.