Columbia subject headings:
Harvard subject headings:
Language and languages
Linguistics
Linguistics--Study and teaching.
Schmitz, Ulrich, 1948---Bibliography.
Semiotics.
Sociolinguistics.
Princeton subject headings:
Language and languages.
Linguistics--Study and teaching.
Linguistics.
Schmitz, Ulrich, 1948---Bibliography.
Semiotics.
Sociolinguistics.