Columbia subject headings:
Semiotics--History.
Speculative grammar.
Thomas, von Erfurt, active 14th century. De modis significandi.
Harvard subject headings:
Philosophy, Medieval.
Semiotics--History.
Speculative grammar.
Thomas, von Erfurt, active 14th century. De modis significandi.
Princeton subject headings:
Grammar, Comparative and general.
Semiotics.
Speculative grammar.
Thomas, von Erfurt, 14th century. De modis significandi.