Columbia subject headings:
Harvard subject headings:
Cao, Yu, 1910-1996--Correspondence.
Dramatists, Chinese--20th century--Correspondence.
Li, Zhi, 1929---Correspondence.
Princeton subject headings:
Cao, Yu, 1910-1996--Correspondence.
Dramatists, Chinese--20th century--Correspondence.
Li, Zhi, 1929---Correspondence.