Columbia subject headings:
Hu, Shi, 1891-1962--Correspondence.
Scholars--China--Correspondence.
Statesmen--China--Correspondence.
Xu, Yisun, -1920--Correspondence.
Harvard subject headings:
Hu, Shi, 1891-1962--Correspondence.
Scholars--China--Correspondence
Statesmen--China--Correspondence.
Xu, Yisun--Correspondence.
Princeton subject headings: