Columbia subject headings:
Harvard subject headings:
China--Politics and government--960-1279--Chronology.
Prime ministers--China--Chronology.
Xu, Ziming, active 12th century-13th century. Song zai fu bian nian lu.
Princeton subject headings:
China--Politics and government--960-1279--Chronology.
Prime ministers--China--Chronology.
Xu, Ziming, active 12th century-13th century. Song zai fu bian nian lu.