Columbia subject headings:
Harvard subject headings:
Petites Ecoles de Port-Royal--History--17th century.
Port-Royal de Paris (Abbey)--History--17th century.
Port-Royal des Champs (Abbey)--History--17th century.
Princeton subject headings:
Petites Ecoles de Port-Royal--History--17th century.
Port-Royal Chumps (Abbey)--History--17th century.
Port-Royal de Paris (Abbey)--History--17th century.