Columbia subject headings:
Grammar, Comparative and general--Person--Congresses.
Grammar, Comparative and general--Subjectless constructions--Congresses.
Harvard subject headings:
Grammar, Comparative and general--Person--Congresses.
Grammar, Comparative and general--Subjectless constructions--Congresses.
Princeton subject headings:
Grammar, Comparative and general--Person--Congresses.
Grammar, Comparative and general--Subjectless constructions--Congresses.